{"id":"CVE-2021-40711","aliases":["EUVD-2021-27877","GHSA-xh8q-wvvw-q9w3"],"status":"published","title":"Adobe Experience Manager Stored Cross-Site Scripting Could Lead to Arbitrary Code Execution","description":"Adobe Experience Manager version 6.5.9.0 (and earlier) is affected by a stored XSS vulnerability when creating Content Fragments. An authenticated attacker can send a malformed POST request to achieve arbitrary code execution. Malicious JavaScript may be executed in a victim’s browser when they browse to the page containing the vulnerable field.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.01488,"percentile":0.74428,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-09-27T15:42:36Z","modified":"2026-06-17T04:07:18Z","products":[{"vendor":"adobe","product":"experience manager"},{"vendor":"adobe","product":"experience_manager"},{"vendor":"sitecore","product":"experience manager"}],"references":[{"url":"https://helpx.adobe.com/security/products/experience-manager/apsb21-82.html","tags":["x_refsource_MISC","x_transferred","Patch","Release Notes","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-40711"},{"url":"https://github.com/advisories/GHSA-xh8q-wvvw-q9w3"}],"sources":{"cve":[{"id":"CVE-2021-40711","title":"Adobe Experience Manager Stored Cross-Site Scripting Could Lead to Arbitrary Code Execution","description":"Adobe Experience Manager version 6.5.9.0 (and earlier) is affected by a stored XSS vulnerability when creating Content Fragments. An authenticated attacker can send a malformed POST request to achieve arbitrary code execution. Malicious JavaScript may be executed in a victim’s browser when they browse to the page containing the vulnerable field.","status":"published","published":"2021-09-27T15:42:36.051Z","modified":"2025-04-23T19:27:30.869Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:33:01.495293Z"}],"euvd":[{"id":"EUVD-2021-27877","description":"Adobe Experience Manager version 6.5.9.0 (and earlier) is affected by a stored XSS vulnerability when creating Content Fragments. An authenticated attacker can send a malformed POST request to achieve arbitrary code execution. Malicious JavaScript may be executed in a victim’s browser when they browse to the page containing the vulnerable field.","status":"published","published":"2021-09-27T15:42:36Z","modified":"2025-04-23T19:27:30Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T20:52:06.372143Z"}],"ghsa":[{"id":"GHSA-xh8q-wvvw-q9w3","title":"Adobe Experience Manager version 6.5.9.0 (and earlier) is affected by a stored XSS vulnerability...","description":"Adobe Experience Manager version 6.5.9.0 (and earlier) is affected by a stored XSS vulnerability when creating Content Fragments. An authenticated attacker can send a malformed POST request to achieve server-side denial of service. Malicious JavaScript may be executed in a victim’s browser when they browse to the page containing the vulnerable field.","status":"published","published":"2022-05-24T22:33:55Z","modified":"2023-01-30T05:06:17Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:47:27.706348Z"}],"nvd":[{"id":"CVE-2021-40711","description":"Adobe Experience Manager version 6.5.9.0 (and earlier) is affected by a stored XSS vulnerability when creating Content Fragments. An authenticated attacker can send a malformed POST request to achieve arbitrary code execution. Malicious JavaScript may be executed in a victim’s browser when they browse to the page containing the vulnerable field.","status":"published","published":"2021-09-27T16:15:10.587Z","modified":"2026-06-17T04:07:18.883Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:58.933037Z"}]}}