CVE-2026-52773

CVE-2026-52773 · Reflected XSS via Unescaped Archived-Revision `time` Parameter in `handlers/page/show.php` in YesWiki

Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.

YesWiki is a wiki system written in PHP. From version 4.1.0 to before version 4.6.6, YesWiki's archived-revision view reflects the time GET parameter into a hidden HTML input in handlers/page/show.php without escaping. Because MySQL coerces malformed DATETIME strings, an attacker can append HTML or JavaScript to a valid archived revision timestamp, still load that archived revision, and execute arbitrary JavaScript in the victim's browser. The vulnerable form is only rendered when the victim can both read and edit the target page. In restricted deployments this requires a victim with read and write access to that page. On a default doryphore 4.6.5 install, public pages such as PagePrincipale were editable anonymously during validation, so the issue can also affect unauthenticated visitors in that configuration. This issue has been patched in version 4.6.6.

CVSS 6.1 · Moyenne · EPSS 0,6% · Code d’exploitation public · Correctif disponible

Publication

2026-09-04T23:44:39.596Z

Mise à jour

2026-09-08T18:03:35.959Z

Pile logicielle: php

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