CVE-2025-24017 Information

Description

YesWiki is a wiki system written in PHP. Versions up to and including 4.4.5 are vulnerable to any end-user crafting a DOM based XSS on all of YesWiki’s pages which is triggered when a user clicks on a malicious link. The vulnerability makes use of the search by tag feature. When a tag doesn’t exist the tag is reflected on the page and isn’t properly sanitized on the server side which allows a malicious user to generate a link that will trigger an XSS on the client’s side when clicked. This vulnerability allows any user to generate a malicious link that will trigger an account takeover when clicked therefore allowing a user to steal other accounts modify pages comments permissions extract user data (emails) thus impacting the integrity availability and confidentiality of a YesWiki instance. Version 4.5.0 contains a patch for the issue.

Reference

https://github.com/YesWiki/yeswiki/commit/c1e28b59394957902c31c850219e4504a20db98b https://github.com/YesWiki/yeswiki/security/advisories/GHSA-wphc-5f2j-jhvg