CVE-2021-24276CWE-79

CVE-2021-24276: vulnerability in Supsystic Contact Form by Supsystic

Contact Form by Supsystic < 1.7.15 - Reflected Cross-Site scripting (XSS)

Published · Updated

Follow this CVE+ Monitor Contact Form by Supsystic

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

43Vexday Risk Score

Patch soon. It has a working public exploit.

ssvc Attendepss 16%
from disclosure to weapon146 days
Published on NVDMay 5
1st PoC+146d
The Contact Form by Supsystic WordPress plugin before 1.7.15 did not sanitise the tab parameter of its options page before outputting it in an attribute, leading to a reflected Cross-Site Scripting issue
Affected products
Supsystic · Contact Form by Supsystic
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Supsystic Contact Form by Supsystic

In the same product, most dangerous first.

CVE-2026-115591HIGHWordPress Contact Form by Supsystic plugin <= 1.10.5 - Sensitive Data Exposure vulnerabilityEPSS 0.3%CVE-2023-45068MEDIUMWordPress Contact Form by Supsystic Plugin <= 1.7.27 is vulnerable to Cross Site Request Forgery (CSRF)EPSS 0.2%CVE-2026-115595MEDIUMWordPress Contact Form by Supsystic plugin <= 1.10.7 - Broken Access Control vulnerabilityEPSS 0.2%