{"id":"CVE-2026-93873","title":"Cotonti through 1.0.0 fails to validate anti-CSRF tokens in the contact plugin submission handler, allowing attackers to forge messages","summary":"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 attri…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","cwe":["CWE-352"],"vendor":"Cotonti","product":"Cotonti","affected":["Cotonti <= 1.0.0"],"published":"2026-09-18","updated":"2026-09-18","sourceUpdated":"2026-09-18T21:18:49.167","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93873","references":[{"url":"https://github.com/Cotonti/Cotonti","label":"disclosure@vulncheck.com"},{"url":"https://github.com/Cotonti/Cotonti/blob/1.0.0/plugins/contact/contact.php","label":"disclosure@vulncheck.com"},{"url":"https://github.com/Cotonti/Cotonti/issues/1895","label":"disclosure@vulncheck.com"},{"url":"https://github.com/Cotonti/Cotonti/pull/1903","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/cotonti-through-1.0.0-cross-site-request-forgery-in-the-contact-plugin","label":"disclosure@vulncheck.com"},{"url":"https://github.com/Cotonti/Cotonti/issues/1895","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-18T20:20:44.146800Z"},"ingestedAt":"2026-09-18T20:51:25.690Z","epss":0.00156,"epssPercentile":0.05129,"slug":"CVE-2026-93873","body":"## Overview\n\nCotonti 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":36,"depthScoreParts":{"impact":23.7,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[]}