CVE-2023-2528: medium-severity vulnerability in supsysticcom Contact Form by Supsystic
Contact Form by Supsystic <= 1.7.24 - Cross-Site Request Forgery via AJAX action
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.4epss 0.3%
The Contact Form by Supsystic plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.7.24. This is due to missing or incorrect nonce validation on the AJAX action handler. This makes it possible for unauthenticated attackers to execute AJAX actions via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Affected products
supsysticcom · Contact Form by SupsysticRelated CVEs — supsysticcom Contact Form by Supsystic
In the same product, most dangerous first.
CVE-2026-4257CRITICALContact Form by Supsystic <= 1.7.36 - Unauthenticated Server-Side Template Injection via Prefill FunctionalityEPSS 41.5%CVE-2026-83625HIGHContact Form by Supsystic <= 1.10.2 - Unauthenticated Stored Cross-Site Scripting via IP Address HeaderEPSS 0.6%CVE-2024-13452MEDIUMContact Form by Supsystic <= 1.7.29 - Cross-Site Request Forgery to Stored Cross-Site Scripting via saveAsCopy AJAX ActionEPSS 0.3%
References
https://plugins.trac.wordpress.org/browser/contact-form-by-supsystic/trunk/classes/frame.php?rev=2777737#L297https://plugins.trac.wordpress.org/browser/contact-form-by-supsystic/trunk/classes/frame.php?rev=2912584#L230https://www.wordfence.com/threat-intel/vulnerabilities/id/1c387b07-baf6-4c62-943e-4bd121160ceb?source=cve