Vulnerability · Published Sep 18, 2026 · Assigned by VulnCheck
CVE-2026-93873Cotonti through 1.0.0 Cross-Site Request Forgery in the Contact Plugin
Medium 4.3
In plain English
A medium-severity cross-site request forgery in Cotonti from Cotonti. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.2%top 91.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
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.
Affected products (as reported)
Weakness: CWE-352 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
References
- https://github.com/Cotonti/Cotonti/issues/1895 issue-tracking
- https://github.com/Cotonti/Cotonti/pull/1903 patch, issue-tracking
- https://github.com/Cotonti/Cotonti/blob/1.0.0/plugins/contact/contact.php technical-description
- https://github.com/Cotonti/Cotonti product
- VulnCheck Advisory: Cotonti through 1.0.0 Cross-Site Request Forgery in the Contact Plugin third-party-advisory