CSRF in Contact Form By Supsystic

CVE-2026-115300

The Contact Form by Supsystic WordPress plugin before 1.11.1 does not validate a CSRF token or request origin on two administrator-only actions that bulk-delete captured form submissions and wipe a form's statistics, allowing attackers to permanently destroy a site's stored contact leads and analytics by tricking a logged-in administrator into sending a forged request.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.001 (0.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 0.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

  • Contact Form By Supsystic

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-115300?
CVE-2026-115300 is a medium-severity vulnerability in Contact Form By Supsystic, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2026-10-29.
How severe is CVE-2026-115300?
Medium severity. CVSS v3 base score is 4.3 out of 10.