CVE-2026-115299: medium-severity vulnerability in Contact Form by Supsystic
Contact Form by Supsystic < 1.11.1 - Arbitrary Plugin Settings Update via CSRF
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 5.4epss 0.1%
The Contact Form by Supsystic WordPress plugin before 1.11.1 does not verify a CSRF nonce before saving its mail settings, allowing an attacker to overwrite the site's outbound mail configuration, including the SMTP server, its credentials and the notification recipient, by tricking a logged-in administrator into visiting a crafted page, which can route the Contact Form by Supsystic WordPress plugin before 1.11.1's contact-form notifications through infrastructure the attacker controls.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Affected products
Unknown · Contact Form by Supsysticpublic PoCs found — 1
cve_referencewpscan.com/vulnerability/102bbaf2-12c8-48b9-bacb-28de2baec45b/unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Contact Form by Supsystic
In the same product, most dangerous first.
CVE-2026-115301HIGHContact Form by Supsystic < 1.11.1 - Admin+ SSTI via Form Text BlockEPSS 0.4%CVE-2026-115303LOWContact Form by Supsystic < 1.11.1 - Unauthenticated CRLF / Email Header Injection via Reply-To Field MappingEPSS 0.2%CVE-2026-115302MEDIUMContact Form by Supsystic < 1.11.1 - Unauthenticated Arbitrary Statistics DeletionEPSS 0.2%CVE-2025-15705LOWContact Form by Supsystic < 1.8.0 - Admin+ Stored XSSEPSS 0.1%CVE-2026-115300MEDIUMContact Form by Supsystic < 1.11.1 - Contact Submission and Statistics Deletion via CSRFEPSS 0.1%