{"id":"CVE-2026-126078","published":"2026-11-10T21:19:26.350","lastModified":"2026-11-10T21:19:26.350","description":"Action View is a framework for handling view template lookup and rendering and provides view helpers for building HTML. Prior to 8.1.4.1 and 8.0.5.2, ActionView::Helpers::TextHelper#highlight substitutes each matched phrase into the :highlighter string without escaping it and returns the result marked HTML-safe. Because sanitizing leaves quote characters in text unescaped, a match substituted into a quoted attribute value of the highlighter, such as the <a href=\"search?q=\\1\"> form shown in the method's documentation, could end the attribute value and add attributes to the element, possibly leading to XSS. Applications are affected when they pass a :highlighter that places a placeholder inside an attribute value and highlight text or phrases that a user controls. The default <mark>\\1</mark> highlighter and the block form are not affected. This issue is fixed in versions 8.1.4.1 and 8.0.5.2.","cvssScore":6.1,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cwes":["CWE-79"],"vendors":[],"products":[],"references":[{"url":"https://github.com/rails/rails/commit/06938194b4fd59e1d2c8ab4a781f3c1e2b763425","tags":[]},{"url":"https://github.com/rails/rails/commit/c796f6198837479ada13290eb8fa767b5219a58a","tags":[]},{"url":"https://github.com/rails/rails/releases/tag/v8.0.5.2","tags":[]},{"url":"https://github.com/rails/rails/releases/tag/v8.1.4.1","tags":[]},{"url":"https://github.com/rails/rails/security/advisories/GHSA-v6rj-xm57-3p59","tags":[]}],"exploitRefs":[{"url":"https://github.com/rails/rails/commit/06938194b4fd59e1d2c8ab4a781f3c1e2b763425","tags":[]},{"url":"https://github.com/rails/rails/commit/c796f6198837479ada13290eb8fa767b5219a58a","tags":[]},{"url":"https://github.com/rails/rails/releases/tag/v8.0.5.2","tags":[]},{"url":"https://github.com/rails/rails/releases/tag/v8.1.4.1","tags":[]},{"url":"https://github.com/rails/rails/security/advisories/GHSA-v6rj-xm57-3p59","tags":[]}],"hasPoc":true,"ai":null}