Vulnerability library
Security checkOctober 23, 2026

Serialize JavaScript: Cross-site scripting (XSS) via unescaped </script at the end of a serialized function body

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Low severitynpmserialize-javascript

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Description

serialize-javascript escapes its output so it is safe to embed inside a <script> element. Before 7.1.3 that guarantee did not hold for a function value whose source ends in a bare </script.

Recommendation

Update the serialize-javascript package to the latest compatible version. Followings are version details:

  • Affected version(s): < 7.1.3
  • Patched version(s): 7.1.3

References

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See something that needs correcting? Let us knowUpdated October 23, 2026