{"id":"CVE-2026-112951","published":"2026-10-20T16:17:05.940","lastModified":"2026-10-20T19:53:10.247","description":"ApostropheCMS is an open-source Node.js content management system. Prior to 4.34.0, the color field accepts trailing content after a valid rgb() or hsl() prefix because its TinyColor validation does not require the entire value to match a color. An authenticated user with edit rights can store arbitrary HTML after a valid color prefix. When the stored value is rendered, the payload executes, resulting in stored XSS. This issue is fixed in version 4.34.0.","cvssScore":5.4,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","cwes":["CWE-79"],"vendors":[],"products":[],"references":[{"url":"https://github.com/apostrophecms/apostrophe/commit/06e4b377f3c360f9e89c32dccd7e505ad5ddf498","tags":[]},{"url":"https://github.com/apostrophecms/apostrophe/commit/40b989b1a9dd23d30029b8ce7668634265cfe5ea","tags":[]},{"url":"https://github.com/apostrophecms/apostrophe/releases/tag/apostrophe@4.34.0","tags":[]},{"url":"https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-vmgj-9cwm-cf3h","tags":[]},{"url":"https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-vmgj-9cwm-cf3h","tags":[]}],"exploitRefs":[{"url":"https://github.com/apostrophecms/apostrophe/commit/06e4b377f3c360f9e89c32dccd7e505ad5ddf498","tags":[]},{"url":"https://github.com/apostrophecms/apostrophe/commit/40b989b1a9dd23d30029b8ce7668634265cfe5ea","tags":[]},{"url":"https://github.com/apostrophecms/apostrophe/releases/tag/apostrophe@4.34.0","tags":[]},{"url":"https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-vmgj-9cwm-cf3h","tags":[]},{"url":"https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-vmgj-9cwm-cf3h","tags":[]}],"hasPoc":true,"ai":null}