{"id":"CVE-2026-63000","published":"2026-09-23T15:17:15.453","lastModified":"2026-09-29T02:16:55.513","description":"REDAXO is a PHP-based content management system. Prior to 5.21.2, rex_api_install_package_update in redaxo/src/addons/install/lib/api/api_package_update.php inherits the false default from rex_api_function::requiresCsrfProtection() instead of requiring a CSRF token. An unauthenticated attacker can cause a logged-in administrator's browser to request a selected package update from the configured REDAXO package server, changing installed addon code or disrupting the site without the administrator's intent. This issue is fixed in version 5.21.2.","cvssScore":6.4,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:L","cwes":["CWE-352"],"vendors":[],"products":[],"references":[{"url":"https://github.com/redaxo/core/commit/a13abbffbad4fdea46a4edc86cdba3335ca9e8f3","tags":[]},{"url":"https://github.com/redaxo/core/pull/6579","tags":[]},{"url":"https://github.com/redaxo/core/releases/tag/5.21.2","tags":[]},{"url":"https://github.com/redaxo/core/security/advisories/GHSA-m8r3-22v6-g877","tags":[]},{"url":"https://github.com/redaxo/core/security/advisories/GHSA-m8r3-22v6-g877","tags":[]}],"exploitRefs":[{"url":"https://github.com/redaxo/core/commit/a13abbffbad4fdea46a4edc86cdba3335ca9e8f3","tags":[]},{"url":"https://github.com/redaxo/core/pull/6579","tags":[]},{"url":"https://github.com/redaxo/core/releases/tag/5.21.2","tags":[]},{"url":"https://github.com/redaxo/core/security/advisories/GHSA-m8r3-22v6-g877","tags":[]},{"url":"https://github.com/redaxo/core/security/advisories/GHSA-m8r3-22v6-g877","tags":[]}],"hasPoc":true,"ai":null}