{"id":"CVE-2021-25968","aliases":["EUVD-2021-12806","GHSA-p799-qjp6-h93p"],"status":"published","title":"OpenCMS - Stored Cross-Site Scripting (XSS) in Sitemap","description":"In “OpenCMS”, versions 10.5.0 to 11.0.2 are affected by a stored XSS vulnerability that allows low privileged application users to store malicious scripts in the Sitemap functionality. These scripts are executed in a victim’s browser when they open 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":"2026-11-10","score":0.00514,"percentile":0.4417,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-10-19T08:15:12Z","modified":"2026-10-24T10:50:41Z","products":[{"vendor":"alkacon","product":"opencms"},{"vendor":"org.opencms","product":"opencms-core"}],"references":[{"url":"https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25968","tags":["x_refsource_MISC","x_transferred","Broken Link","web"]},{"url":"https://github.com/alkacon/mercury-template/commit/800945f5d02346c633c7aef9f5d596d7dedc8fb5","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-25968"},{"url":"https://github.com/advisories/GHSA-p799-qjp6-h93p"}],"sources":{"cve":[{"id":"CVE-2021-25968","title":"OpenCMS - Stored Cross-Site Scripting (XSS) in Sitemap","description":"In “OpenCMS”, versions 10.5.0 to 11.0.2 are affected by a stored XSS vulnerability that allows low privileged application users to store malicious scripts in the Sitemap functionality. These scripts are executed in a victim’s browser when they open the page containing the vulnerable field.","status":"published","published":"2021-10-19T08:15:12Z","modified":"2025-04-30T16:00:50.132Z","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":"2026-11-02T14:32:59.430294Z"}],"euvd":[{"id":"EUVD-2021-12806","description":"In “OpenCMS”, versions 10.5.0 to 11.0.2 are affected by a stored XSS vulnerability that allows low privileged application users to store malicious scripts in the Sitemap functionality. These scripts are executed in a victim’s browser when they open the page containing the vulnerable field.","status":"published","published":"2021-10-19T08:15:12Z","modified":"2025-04-30T16:00:50Z","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":"2026-11-02T20:51:59.026225Z"}],"ghsa":[{"id":"GHSA-p799-qjp6-h93p","title":"In “OpenCMS”, versions 10.5.0 to 11.0.2 are affected by a stored XSS vulnerability that allows...","description":"In “OpenCMS”, versions 10.5.0 to 11.0.2 are affected by a stored XSS vulnerability that allows low privileged application users to store malicious scripts in the Sitemap functionality. These scripts are executed in a victim’s browser when they open the page containing the vulnerable field.","status":"published","published":"2022-05-24T22:28:49Z","modified":"2023-01-30T05:05:46Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:47:21.132905Z"}],"nvd":[{"id":"CVE-2021-25968","description":"In “OpenCMS”, versions 10.5.0 to 11.0.2 are affected by a stored XSS vulnerability that allows low privileged application users to store malicious scripts in the Sitemap functionality. These scripts are executed in a victim’s browser when they open the page containing the vulnerable field.","status":"published","published":"2021-10-19T09:15:07.853Z","modified":"2026-06-17T03:42:41.84Z","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":"2026-11-02T14:06:59.689345Z"}],"osv":[{"id":"CVE-2021-25968","description":"In “OpenCMS”, versions 10.5.0 to 11.0.2 are affected by a stored XSS vulnerability that allows low privileged application users to store malicious scripts in the Sitemap functionality. These scripts are executed in a victim’s browser when they open the page containing the vulnerable field.","status":"published","published":"2021-10-19T09:15:07.853Z","modified":"2026-10-24T10:50:41.65059569Z","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":"2026-11-02T15:44:18.778776Z"}]}}