CVE-2025-39381 WordPress KiotViet Sync plugin <= 1.8.4 - CSRF to Stored XSS vulnerability

High 7.1 Published Updated

Attackers can inject malicious scripts via CSRF, leading to stored XSS and potential account takeover in the KiotViet Sync plugin.

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-2025-39381?

CVE-2025-39381 is a high-severity cross-site scripting vulnerability in KiotViet Sync, published on 24 Apr 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 Request Forgery (CSRF) vulnerability in Kiotviet KiotViet Sync allows Stored XSS. This issue affects KiotViet Sync: from n/a through 1.8.4.

Weakness: CWE-352

Which versions are affected by CVE-2025-39381?

How do I fix CVE-2025-39381?

No fix has been published for CVE-2025-39381 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-2025-39381 being exploited?

There is no known exploitation of CVE-2025-39381 in the wild and no public exploit code.

Sources

Also known as GHSA-m5jp-j4jf-fwmp.

Is CVE-2025-39381 in your software?

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