serialize-javascript 7.0.1 before 7.1.3 XSS via unescaped </script in function body
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.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-115897US | — | — | ||
Serialize JavaScript serializes JavaScript values to a superset of JSON that includes regular expressions and functions. Prior to 7.1.3, the function-source escaping logic does not… | ||||
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references
External citations — patches, advisories, analysis.
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115754.jsonADVISORY
- https://github.com/yahoo/serialize-javascriptPACKAGE
- https://github.com/yahoo/serialize-javascript/commit/2864b3c6260a3bfd52d2db3e70d1a079de108a61FIX
- https://github.com/yahoo/serialize-javascript/pull/235FIX
- https://github.com/yahoo/serialize-javascript/releases/tag/v7.1.3ADVISORY
- https://github.com/yahoo/serialize-javascript/security/advisories/GHSA-m5mm-p8h7-m29vADVISORY
- https://nvd.nist.gov/vuln/detail/CVE-2026-115754ADVISORY
- https://www.vulncheck.com/advisories/serialize-javascript-7.0.1-before-7.1.3-xss-via-unescaped-script-in-function-bodyADVISORY
scry
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