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CVE-2021-21080

Status: ModifiedMedium (6.1)—

Adobe Connect version 11.0.7 (and earlier) is affected by a reflected Cross-Site Scripting (XSS) vulnerability. An attacker could exploit this vulnerability to inject malicious JavaScript content that may be executed within the context of the victim's browser when they browse to the page containing the vulnerable field.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Adobe — Connect

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2021-21080",
  "cveTags": [],
  "metrics": {
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          "id": "CVE-2021-21080",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-23T13:13:36.298855Z"
        }
      }
    ],
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
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        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
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    ],
    "cvssMetricV30": [
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        "type": "Secondary",
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        "cvssData": {
          "scope": "CHANGED",
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  },
  "affected": [
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      "affectedData": [
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          "vendor": "Adobe",
          "product": "Connect",
          "versions": [
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              "version": "unspecified",
              "versionType": "custom",
              "lessThanOrEqual": "11.0.7"
            },
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              "versionType": "custom",
              "lessThanOrEqual": "None"
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  ],
  "published": "2021-03-12T19:15:14.757",
  "references": [
    {
      "url": "https://helpx.adobe.com/security/products/connect/apsb21-19.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@adobe.com"
    },
    {
      "url": "https://helpx.adobe.com/security/products/connect/apsb21-19.html",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@adobe.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Adobe Connect version 11.0.7 (and earlier) is affected by a reflected Cross-Site Scripting (XSS) vulnerability. An attacker could exploit this vulnerability to inject malicious JavaScript content that may be executed within the context of the victim's browser when they browse to the page containing the vulnerable field."
    },
    {
      "lang": "es",
      "value": "Adobe Connect versiones 11.0.7 (y anteriores), está afectado por una vulnerabilidad de tipo Cross-Site Scripting (XSS) reflejado. Un atacante podría explotar esta vulnerabilidad para inyectar contenido JavaScript malicioso que puede ser ejecutado dentro del contexto del navegador de la víctima cuando navega a la página que contiene el campo vulnerable"
    }
  ],
  "lastModified": "2026-06-17T03:34:47.597",
  "configurations": [
    {
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              "versionEndIncluding": "11.0.7"
            }
          ],
          "operator": "OR"
        }
      ]
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  ],
  "sourceIdentifier": "psirt@adobe.com"
}