CVE-2026-28145 (GCVE-0-2026-28145)

Vulnerability from cvelistv5 – Published: 2026-07-31 13:19 – Updated: 2026-07-31 14:01 X_Open Source
VLAI
Title
WordPress MasterStudy LMS plugin <= 3.7.39 - Broken Access Control vulnerability
Summary
Insufficient Verification of Data Authenticity vulnerability in StylemixThemes MasterStudy LMS allows Manipulating User State. This issue affects MasterStudy LMS: from n/a through 3.7.39.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-31 14:00 UTC
CWE
  • CWE-345 - Insufficient Verification of Data Authenticity
Assigner
References
Impacted products
Vendor Product Version CPE status
StylemixThemes MasterStudy LMS Affected: n/a , ≤ 3.7.39 (custom)
guessed Create a notification for this product.
Credits
Abdullah Kareem "cyberkareem" | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-28145",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-31T14:00:59.889282Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-31T14:01:07.485Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://wordpress.org/plugins",
          "defaultStatus": "unaffected",
          "packageName": "masterstudy-lms-learning-management-system",
          "product": "MasterStudy LMS",
          "vendor": "StylemixThemes",
          "versions": [
            {
              "changes": [
                {
                  "at": "3.7.40",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "3.7.39",
              "status": "affected",
              "version": "n/a",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "user": "00000000-0000-4000-9000-000000000000",
          "value": "Abdullah Kareem \"cyberkareem\" | Patchstack Bug Bounty Program"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Insufficient Verification of Data Authenticity vulnerability in StylemixThemes MasterStudy LMS allows Manipulating User State.\u003cp\u003eThis issue affects MasterStudy LMS: from n/a through 3.7.39.\u003c/p\u003e"
            }
          ],
          "value": "Insufficient Verification of Data Authenticity vulnerability in StylemixThemes MasterStudy LMS allows Manipulating User State.\n\nThis issue affects MasterStudy LMS: from n/a through 3.7.39."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-74",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-74 Manipulating User State"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-345",
              "description": "CWE-345 Insufficient Verification of Data Authenticity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-31T13:19:39.683Z",
        "orgId": "21595511-bba5-4825-b968-b78d1f9984a3",
        "shortName": "Patchstack"
      },
      "references": [
        {
          "tags": [
            "vdb-entry"
          ],
          "url": "https://patchstack.com/database/wordpress/plugin/masterstudy-lms-learning-management-system/vulnerability/wordpress-masterstudy-lms-plugin-3-7-39-broken-access-control-vulnerability?_s_id=cve"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Update the WordPress MasterStudy LMS plugin to the latest available version (at least 3.7.40)."
            }
          ],
          "value": "Update the WordPress MasterStudy LMS plugin to the latest available version (at least 3.7.40)."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "tags": [
        "x_open-source"
      ],
      "title": "WordPress MasterStudy LMS plugin \u003c= 3.7.39 - Broken Access Control vulnerability",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3",
    "assignerShortName": "Patchstack",
    "cveId": "CVE-2026-28145",
    "datePublished": "2026-07-31T13:19:39.683Z",
    "dateReserved": "2026-02-25T12:14:24.000Z",
    "dateUpdated": "2026-07-31T14:01:07.485Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-28145",
      "date": "2026-09-24",
      "epss": "0.00158",
      "percentile": "0.04125"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "collectionURL": "https://wordpress.org/plugins",
                "defaultStatus": "unaffected",
                "packageName": "masterstudy-lms-learning-management-system",
                "product": "MasterStudy LMS",
                "vendor": "StylemixThemes",
                "versions": [
                  {
                    "changes": [
                      {
                        "at": "3.7.40",
                        "status": "unaffected"
                      }
                    ],
                    "lessThanOrEqual": "3.7.39",
                    "status": "affected",
                    "version": "n/a",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "source": "audit@patchstack.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Insufficient Verification of Data Authenticity vulnerability in StylemixThemes MasterStudy LMS allows Manipulating User State.\n\nThis issue affects MasterStudy LMS: from n/a through 3.7.39."
          }
        ],
        "id": "CVE-2026-28145",
        "lastModified": "2026-08-12T20:59:00.027",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 1.4,
              "source": "audit@patchstack.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-28145",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "yes"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-31T14:00:59.889282Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-07-31T14:16:49.967",
        "references": [
          {
            "source": "audit@patchstack.com",
            "url": "https://patchstack.com/database/wordpress/plugin/masterstudy-lms-learning-management-system/vulnerability/wordpress-masterstudy-lms-plugin-3-7-39-broken-access-control-vulnerability?_s_id=cve"
          }
        ],
        "sourceIdentifier": "audit@patchstack.com",
        "vulnStatus": "Deferred",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-345"
              }
            ],
            "source": "audit@patchstack.com",
            "type": "Primary"
          }
        ]
      }
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-28145",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-07-31T14:00:59.889282Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-07-31T14:01:04.630Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "collectionURL": "https://wordpress.org/plugins",
              "defaultStatus": "unaffected",
              "packageName": "masterstudy-lms-learning-management-system",
              "product": "MasterStudy LMS",
              "vendor": "StylemixThemes",
              "versions": [
                {
                  "changes": [
                    {
                      "at": "3.7.40",
                      "status": "unaffected"
                    }
                  ],
                  "lessThanOrEqual": "3.7.39",
                  "status": "affected",
                  "version": "n/a",
                  "versionType": "custom"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "user": "00000000-0000-4000-9000-000000000000",
              "value": "Abdullah Kareem \"cyberkareem\" | Patchstack Bug Bounty Program"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "Insufficient Verification of Data Authenticity vulnerability in StylemixThemes MasterStudy LMS allows Manipulating User State.\u003cp\u003eThis issue affects MasterStudy LMS: from n/a through 3.7.39.\u003c/p\u003e"
                }
              ],
              "value": "Insufficient Verification of Data Authenticity vulnerability in StylemixThemes MasterStudy LMS allows Manipulating User State.\n\nThis issue affects MasterStudy LMS: from n/a through 3.7.39."
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-74",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-74 Manipulating User State"
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
                "version": "3.1"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-345",
                  "description": "CWE-345 Insufficient Verification of Data Authenticity",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-07-31T13:19:39.683Z",
            "orgId": "21595511-bba5-4825-b968-b78d1f9984a3",
            "shortName": "Patchstack"
          },
          "references": [
            {
              "tags": [
                "vdb-entry"
              ],
              "url": "https://patchstack.com/database/wordpress/plugin/masterstudy-lms-learning-management-system/vulnerability/wordpress-masterstudy-lms-plugin-3-7-39-broken-access-control-vulnerability?_s_id=cve"
            }
          ],
          "solutions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "Update the WordPress MasterStudy LMS plugin to the latest available version (at least 3.7.40)."
                }
              ],
              "value": "Update the WordPress MasterStudy LMS plugin to the latest available version (at least 3.7.40)."
            }
          ],
          "source": {
            "discovery": "EXTERNAL"
          },
          "tags": [
            "x_open-source"
          ],
          "title": "WordPress MasterStudy LMS plugin \u003c= 3.7.39 - Broken Access Control vulnerability",
          "x_generator": {
            "engine": "Vulnogram 0.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3",
        "assignerShortName": "Patchstack",
        "cveId": "CVE-2026-28145",
        "datePublished": "2026-07-31T13:19:39.683Z",
        "dateReserved": "2026-02-25T12:14:24.000Z",
        "dateUpdated": "2026-07-31T14:01:07.485Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.



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.