CVE-2026-3742 YiFang CMS D_singlePage.php update cross site scripting

Medium 5.1 Published 8 Mar 2026 Updated 11 Mar 2026

Remote attackers can inject malicious scripts via the Title argument in the single page update function, potentially compromising user sessions.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-3742?

CVE-2026-3742 is a medium-severity cross-site scripting vulnerability in YiFang CMS, published on 8 Mar 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A vulnerability was detected in YiFang CMS 2.0.5. The impacted element is the function update of the file app/db/admin/D_singlePage.php. Performing a manipulation of the argument Title results in cross site scripting. It is possible to initiate the attack remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-94, CWE-79

Which versions are affected by CVE-2026-3742?

It affects 1 product.

Products include Yifangcms Yifang.

How do I fix CVE-2026-3742?

No fix has been published for CVE-2026-3742 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-2026-3742 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3742 exists.

Sources

Also known as GHSA-pwcm-mpvj-rqx4.