CVE-2025-52277 YesWiki Cross Site Scripting vulnerability

Medium 6.1 Published Updated

A remote attacker can execute arbitrary code via a crafted payload in the meta configuration robots field of YesWiki.

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
None listed

What is CVE-2025-52277?

CVE-2025-52277 is a medium-severity cross-site scripting vulnerability in n/a, published on 9 Sep 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

Cross Site Scripting vulnerability in YesWiki v.4.54 allows a remote attacker to execute arbitrary code via a crafted payload to the meta configuration robots field

Weakness: CWE-79

Which versions are affected by CVE-2025-52277?

2 open source packages ship an affected version, including yeswiki/yeswiki. It affects 1 product.

PackageAffectedFixed in
yeswiki/yeswiki PackagistAll versions to 4.5.4None
yeswiki/yeswiki PackagistAll versions to 4.5.4None

Products include Yeswiki Yeswiki.

How do I fix CVE-2025-52277?

No fix has been published for CVE-2025-52277 yet. Limit exposure of the affected software until one is available.

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-2025-52277 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-52277 exists.

Sources

Also known as GHSA-29cj-cxw4-v4j2.

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