Vulnerability-Lookup

GHSA-83CH-55JW-XP9W

Vulnerability from github – Published: 2026-05-06 18:30 – Updated: 2026-05-06 18:30

Details

This vulnerability existed because of the presence of an insecure direct object reference. Prior to this vulnerability being addressed, an attacker could have exploited this vulnerability by sending a crafted request to the vulnerable API endpoint. A successful exploit could have allowed the attacker to view the social profiles of other users or affect quiz and poll results.

Severity

5.4 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-20219"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-06T17:16:21Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability in the REST API of Cisco Slido could have allowed an authenticated, remote attacker to access the social profile data of other users or affect quiz and poll results. Cisco has addressed this vulnerability in Cisco Slido and no customer action is needed.\n\n This vulnerability existed because of the presence of an insecure direct object reference. Prior to this vulnerability being addressed, an attacker could have exploited this vulnerability by sending a crafted request to the vulnerable API endpoint. A successful exploit could have allowed the attacker to view the social profiles of other users or affect quiz and poll results.",
  "id": "GHSA-83ch-55jw-xp9w",
  "modified": "2026-05-06T18:30:31Z",
  "published": "2026-05-06T18:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20219"
    },
    {
      "type": "WEB",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-slido-idor-CpsFmKxN"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-20219 (GCVE-0-2026-20219)

Vulnerability from cvelistv5 – Published: 2026-05-06 17:10 – Updated: 2026-05-06 19:09

Summary

A vulnerability in the REST API of Cisco Slido could have allowed an authenticated, remote attacker to access the social profile data of other users or affect quiz and poll results. Cisco has addressed this vulnerability in Cisco Slido and no customer action is needed. This vulnerability existed because of the presence of an insecure direct object reference. Prior to this vulnerability being addressed, an attacker could have exploited this vulnerability by sending a crafted request to the vulnerable API endpoint. A successful exploit could have allowed the attacker to view the social profiles of other users or affect quiz and poll results.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-06 19:08 UTC

CWE

CWE-639 - Authorization Bypass Through User-Controlled Key

Assigner

cisco mitre root

References

1 reference

URL	Tags
https://sec.cloudapps.cisco.com/security/center/c…

Impacted products

2 products

Vendor	Product	Version
Cisco	Cisco Webex Meetings	Affected: 39.10 Affected: 39.11 Affected: 39.6 Affected: 39.7 Affected: 39.7.4 Affected: 39.7.7 Affected: 39.8 Affected: 39.8.2 Affected: 39.8.3 Affected: 39.8.4 Affected: 39.9 Affected: 39.9.1 Affected: 40.1 Affected: 40.2 Affected: 40.4 Affected: 40.4.10 Affected: 40.6 Affected: 40.6.2 Affected: 42.10 Affected: 42.11 Affected: 42.6 Affected: 42.9 Affected: 42.12 Affected: 42.7 Affected: 43.1 Affected: 43.4 Affected: 43.4.2 Affected: 43.5.0 Affected: 43.4.1
Cisco	Cisco Slido	Affected: N/A

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-20219",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-06T19:08:45.650631Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-06T19:09:39.992Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco Webex Meetings",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "39.10"
            },
            {
              "status": "affected",
              "version": "39.11"
            },
            {
              "status": "affected",
              "version": "39.6"
            },
            {
              "status": "affected",
              "version": "39.7"
            },
            {
              "status": "affected",
              "version": "39.7.4"
            },
            {
              "status": "affected",
              "version": "39.7.7"
            },
            {
              "status": "affected",
              "version": "39.8"
            },
            {
              "status": "affected",
              "version": "39.8.2"
            },
            {
              "status": "affected",
              "version": "39.8.3"
            },
            {
              "status": "affected",
              "version": "39.8.4"
            },
            {
              "status": "affected",
              "version": "39.9"
            },
            {
              "status": "affected",
              "version": "39.9.1"
            },
            {
              "status": "affected",
              "version": "40.1"
            },
            {
              "status": "affected",
              "version": "40.2"
            },
            {
              "status": "affected",
              "version": "40.4"
            },
            {
              "status": "affected",
              "version": "40.4.10"
            },
            {
              "status": "affected",
              "version": "40.6"
            },
            {
              "status": "affected",
              "version": "40.6.2"
            },
            {
              "status": "affected",
              "version": "42.10"
            },
            {
              "status": "affected",
              "version": "42.11"
            },
            {
              "status": "affected",
              "version": "42.6"
            },
            {
              "status": "affected",
              "version": "42.9"
            },
            {
              "status": "affected",
              "version": "42.12"
            },
            {
              "status": "affected",
              "version": "42.7"
            },
            {
              "status": "affected",
              "version": "43.1"
            },
            {
              "status": "affected",
              "version": "43.4"
            },
            {
              "status": "affected",
              "version": "43.4.2"
            },
            {
              "status": "affected",
              "version": "43.5.0"
            },
            {
              "status": "affected",
              "version": "43.4.1"
            }
          ]
        },
        {
          "product": "Cisco Slido",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "N/A"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the REST API of Cisco Slido could have allowed an authenticated, remote attacker to access the social profile data of other users or affect quiz and poll results. Cisco has addressed this vulnerability in Cisco Slido and no customer action is needed.\r\n\r This vulnerability existed because of the presence of an insecure direct object reference. Prior to this vulnerability being addressed, an attacker could have exploited this vulnerability by sending a crafted request to the vulnerable API endpoint. A successful exploit could have allowed the attacker to view the social profiles of other users or affect quiz and poll results."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "format": "cvssV3_1"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-639",
              "description": "Authorization Bypass Through User-Controlled Key",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-06T17:10:46.343Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "cisco-sa-slido-idor-CpsFmKxN",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-slido-idor-CpsFmKxN"
        }
      ],
      "source": {
        "advisory": "cisco-sa-slido-idor-CpsFmKxN",
        "defects": [
          "CSCwt90572"
        ],
        "discovery": "EXTERNAL"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2026-20219",
    "datePublished": "2026-05-06T17:10:46.343Z",
    "dateReserved": "2025-10-08T11:59:15.398Z",
    "dateUpdated": "2026-05-06T19:09:39.992Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.