CVE-2026-55090
CVE-2026-55090 · Etherpad: Stored XSS in HTML export via unescaped attribute-pool values
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Etherpad is a real-time collaborative editor. Prior to 3.3.0, getHTMLFromAtext in src/node/utils/ExportHtml.ts interpolates values from the exportHtmlAdditionalTagsWithData plugin hook into span data attributes without HTML attribute escaping. A pad editor can place an attacker-controlled value into the attribute pool through moveOpsToNewPool and AttributePool.putAttrib. When a bundled plugin such as ep_font_color or ep_font_size registers the hook, opening the resulting HTML export causes the value to execute as stored cross-site scripting in the Etherpad origin. This issue is fixed in version 3.3.0.
CVSS 5.3 · Moyenne · EPSS 0,5% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: node
Produits et versions concernés
etherpad
- Versions du logiciel
- < 3.3.0: Concernée
Aucun correctif publié
ep_etherpad-lite npm
- Plages de versions concernées
- SEMVER: < 3.3.0
Mettez à jour vers 3.3.0