CVE-2025-13820 Comments – wpDiscuz < 7.6.40 - Unauthenticated Account Takeover
An attacker can take over accounts of users without Disqus profiles by exploiting improper identity validation in the wpDiscuz plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-13820?
CVE-2025-13820 is a medium-severity authentication bypass vulnerability in Unknown Comments, published on 1 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Comments WordPress plugin before 7.6.40 does not properly validate user's identity when using the disqus.com provider, allowing an attacker to log in to any user (when knowing their email address) when such user does not have an account on disqus.com yet.
Which versions are affected by CVE-2025-13820?
How do I fix CVE-2025-13820?
No fix has been published for CVE-2025-13820 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2025-13820 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-13820 exists.
Sources
Also known as GHSA-77g2-3gj2-8h4q.