Vulnerability · Published Oct 29, 2026 · Assigned by WPScan

CVE-2026-115299Contact Form by Supsystic < 1.11.1 - Arbitrary Plugin Settings Update via CSRF

Medium 5.4

In plain English

A medium-severity cross-site request forgery in Contact Form by Supsystic from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 0% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)<0.1%top 99.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Unknown	Contact Form by Supsystic	0 – before 1.11.1

Weakness: CWE-352 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

References

https://wpscan.com/vulnerability/102bbaf2-12c8-48b9-bacb-28de2baec45b/ exploit, vdb-entry, technical-description