Vulnerability library
Security checkAugust 17, 2026

Etherpad has stored XSS in HTML export via unescaped attribute-pool values

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High severitynpmep_etherpad-lite

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Description

Fix: PR #7905 (ether/etherpad).

getHTMLFromAtext in src/node/utils/ExportHtml.ts interpolates values from the exportHtmlAdditionalTagsWithData plugin hook into span data-<k>="<v>" without HTML-attribute escaping.

Recommendation

Update the ep_etherpad-lite package to the latest compatible version. Followings are version details:

  • Affected version(s): <= 1.8.14
  • Patched version(s): 3.3.0

References

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Related Issues

See something that needs correcting? Let us knowUpdated August 17, 2026