CVE-2026-93873 Cotonti through 1.0.0 Cross-Site Request Forgery in the Contact Plugin
Attackers can forge contact form submissions attributed to authenticated victims, sending spam or malicious messages to administrators.
- 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-2026-93873?
CVE-2026-93873 is a medium-severity vulnerability in Cotonti, published on 18 Sep 2026. 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
Cotonti through 1.0.0 fails to validate anti-CSRF tokens in the contact plugin submission handler, allowing attackers to forge messages. Attackers can auto-submit contact forms from attacker-controlled pages to send forged messages attributed to authenticated victims to the administrator inbox.
Weakness: CWE-352
Which versions are affected by CVE-2026-93873?
How do I fix CVE-2026-93873?
No fix has been published for CVE-2026-93873 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-93873 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-93873 exists.
Sources
Also known as GHSA-fx98-4ggj-ff23.