CVE-2026-16809 (GCVE-0-2026-16809)

Vulnerability from cvelistv5 – Published: 2026-08-26 21:39 – Updated: 2026-08-27 18:30
VLAI
Title
LimeSurvey Community Edition 7.0.5 - Stored XSS in quota message rendering
Summary
LimeSurvey Community Edition 7.0.5 contains a stored cross-site scripting vulnerability in the survey quota creation workflow. An authenticated low-privileged user who can create and manage their own survey can store malicious JavaScript in a quota message. This issue affects LimeSurvey: 7.0.5.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 18:30 UTC
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Assigner
References
Impacted products
Vendor Product Version CPE status
LimeSurvey LimeSurvey Affected: 7.0.5
    cpe:2.3:a:limesurvey:limesurvey:7.0.5:*:windows:*:*:*:*:*
    cpe:2.3:a:limesurvey:limesurvey:7.0.5:*:macos:*:*:*:*:*
    cpe:2.3:a:limesurvey:limesurvey:7.0.5:*:linux:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-16809",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-27T18:30:39.323775Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-27T18:30:59.918Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://fluidattacks.com/es/advisories/wellerman"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows",
            "MacOS",
            "Linux"
          ],
          "product": "LimeSurvey",
          "repo": "https://github.com/LimeSurvey/LimeSurvey",
          "vendor": "LimeSurvey",
          "versions": [
            {
              "status": "affected",
              "version": "7.0.5"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:limesurvey:limesurvey:7.0.5:*:windows:*:*:*:*:*",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:limesurvey:limesurvey:7.0.5:*:macos:*:*:*:*:*",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:limesurvey:limesurvey:7.0.5:*:linux:*:*:*:*:*",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Miguel G\u00f3mez"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Fluid Attacks\u0027 AI SAST Scanner"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eLimeSurvey Community Edition 7.0.5 contains a stored cross-site scripting vulnerability in the survey quota creation workflow. An authenticated low-privileged user who can create and manage their own survey can store malicious JavaScript in a quota message.\u003c/p\u003e\u003cp\u003eThis issue affects LimeSurvey: 7.0.5.\u003c/p\u003e"
            }
          ],
          "value": "LimeSurvey Community Edition 7.0.5 contains a stored cross-site scripting vulnerability in the survey quota creation workflow. An authenticated low-privileged user who can create and manage their own survey can store malicious JavaScript in a quota message.\n\nThis issue affects LimeSurvey: 7.0.5."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-592",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-592 Stored XSS"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "ACTIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or \u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-26T21:39:34.719Z",
        "orgId": "84fe0718-d6bb-4716-a7e8-81a6d1daa869",
        "shortName": "Fluid Attacks"
      },
      "references": [
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://fluidattacks.com/es/advisories/wellerman"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/LimeSurvey/LimeSurvey"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "LimeSurvey Community Edition 7.0.5 - Stored XSS in quota message rendering",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "84fe0718-d6bb-4716-a7e8-81a6d1daa869",
    "assignerShortName": "Fluid Attacks",
    "cveId": "CVE-2026-16809",
    "datePublished": "2026-08-26T21:39:12.944Z",
    "dateReserved": "2026-07-23T21:22:05.734Z",
    "dateUpdated": "2026-08-27T18:30:59.918Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-16809",
      "date": "2026-09-26",
      "epss": "0.00243",
      "percentile": "0.13928"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "platforms": [
                  "Windows",
                  "MacOS",
                  "Linux"
                ],
                "product": "LimeSurvey",
                "repo": "https://github.com/LimeSurvey/LimeSurvey",
                "vendor": "LimeSurvey",
                "versions": [
                  {
                    "status": "affected",
                    "version": "7.0.5"
                  }
                ]
              }
            ],
            "source": "help@fluidattacks.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "LimeSurvey Community Edition 7.0.5 contains a stored cross-site scripting vulnerability in the survey quota creation workflow. An authenticated low-privileged user who can create and manage their own survey can store malicious JavaScript in a quota message.\n\nThis issue affects LimeSurvey: 7.0.5."
          }
        ],
        "id": "CVE-2026-16809",
        "lastModified": "2026-08-28T15:31:31.210",
        "metrics": {
          "cvssMetricV40": [
            {
              "cvssData": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "PRESENT",
                "attackVector": "NETWORK",
                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 7.2,
                "baseSeverity": "HIGH",
                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "LOW",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "LOW",
                "subIntegrityImpact": "LOW",
                "userInteraction": "ACTIVE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "HIGH",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "source": "help@fluidattacks.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-16809",
                "options": [
                  {
                    "exploitation": "poc"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-27T18:30:39.323775Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-08-26T22:16:23.160",
        "references": [
          {
            "source": "help@fluidattacks.com",
            "url": "https://fluidattacks.com/es/advisories/wellerman"
          },
          {
            "source": "help@fluidattacks.com",
            "url": "https://github.com/LimeSurvey/LimeSurvey"
          },
          {
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "url": "https://fluidattacks.com/es/advisories/wellerman"
          }
        ],
        "sourceIdentifier": "help@fluidattacks.com",
        "vulnStatus": "Deferred",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-79"
              }
            ],
            "source": "help@fluidattacks.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-16809",
                    "options": [
                      {
                        "Exploitation": "poc"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-08-27T18:30:39.323775Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-08-27T18:30:54.383Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "references": [
              {
                "tags": [
                  "exploit"
                ],
                "url": "https://fluidattacks.com/es/advisories/wellerman"
              }
            ],
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "platforms": [
                "Windows",
                "MacOS",
                "Linux"
              ],
              "product": "LimeSurvey",
              "repo": "https://github.com/LimeSurvey/LimeSurvey",
              "vendor": "LimeSurvey",
              "versions": [
                {
                  "status": "affected",
                  "version": "7.0.5"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:a:limesurvey:limesurvey:7.0.5:*:windows:*:*:*:*:*",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:a:limesurvey:limesurvey:7.0.5:*:macos:*:*:*:*:*",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:a:limesurvey:limesurvey:7.0.5:*:linux:*:*:*:*:*",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ],
              "operator": "OR"
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "Miguel G\u00f3mez"
            },
            {
              "lang": "en",
              "type": "finder",
              "value": "Fluid Attacks\u0027 AI SAST Scanner"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cp\u003eLimeSurvey Community Edition 7.0.5 contains a stored cross-site scripting vulnerability in the survey quota creation workflow. An authenticated low-privileged user who can create and manage their own survey can store malicious JavaScript in a quota message.\u003c/p\u003e\u003cp\u003eThis issue affects LimeSurvey: 7.0.5.\u003c/p\u003e"
                }
              ],
              "value": "LimeSurvey Community Edition 7.0.5 contains a stored cross-site scripting vulnerability in the survey quota creation workflow. An authenticated low-privileged user who can create and manage their own survey can store malicious JavaScript in a quota message.\n\nThis issue affects LimeSurvey: 7.0.5."
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-592",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-592 Stored XSS"
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "PRESENT",
                "attackVector": "NETWORK",
                "baseScore": 7.2,
                "baseSeverity": "HIGH",
                "privilegesRequired": "LOW",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "LOW",
                "subIntegrityImpact": "LOW",
                "userInteraction": "ACTIVE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "HIGH",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-79",
                  "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or \u0027Cross-site Scripting\u0027)",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-26T21:39:34.719Z",
            "orgId": "84fe0718-d6bb-4716-a7e8-81a6d1daa869",
            "shortName": "Fluid Attacks"
          },
          "references": [
            {
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://fluidattacks.com/es/advisories/wellerman"
            },
            {
              "tags": [
                "product"
              ],
              "url": "https://github.com/LimeSurvey/LimeSurvey"
            }
          ],
          "source": {
            "discovery": "UNKNOWN"
          },
          "title": "LimeSurvey Community Edition 7.0.5 - Stored XSS in quota message rendering",
          "x_generator": {
            "engine": "Vulnogram 0.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "84fe0718-d6bb-4716-a7e8-81a6d1daa869",
        "assignerShortName": "Fluid Attacks",
        "cveId": "CVE-2026-16809",
        "datePublished": "2026-08-26T21:39:12.944Z",
        "dateReserved": "2026-07-23T21:22:05.734Z",
        "dateUpdated": "2026-08-26T21:39:34.719Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Loading…

Loading…

Loading…

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


Loading…