CVE-2025-24017 YesWiki Vulnerable to Unauthenticated DOM Based XSS
An attacker can craft a malicious link exploiting DOM-based XSS in YesWiki to steal accounts and modify data when clicked.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-24017?
CVE-2025-24017 is a high-severity cross-site scripting vulnerability in yeswiki, published on 21 Jan 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2025-24017?
2 open source packages ship an affected version, including yeswiki/yeswiki. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
yeswiki/yeswiki Packagist | All versions | 4.5.0 |
yeswiki/yeswiki Packagist | All versions | 4.5.0 |
Products include Yeswiki Yeswiki.
How do I fix CVE-2025-24017?
Upgrade yeswiki/yeswiki to 4.5.0 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-24017 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-24017 exists.
Other vulnerabilities in yeswiki
- CVE-2025-46348 YesWiki Vulnerable to Unauthenticated Site Backup Creation and Download
- CVE-2024-51478 Use of a Broken or Risky Cryptographic Algorithm in YesWiki
- CVE-2018-1000641 Deserialization in n/a
- CVE-2025-31131 Path Traversal allowing arbitrary read of files in Yeswiki
- CVE-2025-46349 YesWiki Vulnerable to Unauthenticated Reflected Cross-site Scripting
Sources
Also known as GHSA-wphc-5f2j-jhvg.