{"id":"CVE-2026-115754","published":"2026-10-23T14:17:52.590","lastModified":"2026-10-23T19:45:03.547","description":"serialize-javascript from 7.0.1 before 7.1.3 contains a cross-site scripting vulnerability that allows attackers to break out of HTML script elements by ending serialized function source text with an unescaped </script. Attackers controlling a function's source via a spoofed toString() can combine surrounding output delimiters and later values to inject live markup such as img onerror handlers.","cvssScore":4.7,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N","cwes":["CWE-79"],"vendors":[],"products":[],"references":[{"url":"https://github.com/yahoo/serialize-javascript/commit/2864b3c6260a3bfd52d2db3e70d1a079de108a61","tags":[]},{"url":"https://github.com/yahoo/serialize-javascript/pull/235","tags":[]},{"url":"https://github.com/yahoo/serialize-javascript/releases/tag/v7.1.3","tags":[]},{"url":"https://github.com/yahoo/serialize-javascript/security/advisories/GHSA-m5mm-p8h7-m29v","tags":[]},{"url":"https://www.vulncheck.com/advisories/serialize-javascript-7.0.1-before-7.1.3-xss-via-unescaped-script-in-function-body","tags":[]}],"exploitRefs":[{"url":"https://github.com/yahoo/serialize-javascript/commit/2864b3c6260a3bfd52d2db3e70d1a079de108a61","tags":[]},{"url":"https://github.com/yahoo/serialize-javascript/pull/235","tags":[]},{"url":"https://github.com/yahoo/serialize-javascript/releases/tag/v7.1.3","tags":[]},{"url":"https://github.com/yahoo/serialize-javascript/security/advisories/GHSA-m5mm-p8h7-m29v","tags":[]}],"hasPoc":true,"ai":null}