TI-2023-02369 Aliases CVE-2023-2528 GHSA-f2r8-gfhj-c6rg

Contact Form by Supsystic <= 1.7.24 - Cross-Site Request Forgery via AJAX action

LOW 38CWE-352Published 2023-05-16 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Tampering
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-352.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0032 25th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Supsystic	Contact Form by Supsystic	up to 1.7.24	—	No fix listed	CNA

Contact Form by Supsystic VendorSupsystic Affected up to 1.7.24 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:supsystic:contact_form::::::wordpress::*	up to 1.7.24	Vulnerable	Supsystic

cpe:2.3:a:supsystic:contact_form:*:*:*:*:*:wordpress:*:* Versions up to 1.7.24 Vulnerable ·Supsystic

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-2528
2026-10-03 Alias added: GHSA-f2r8-gfhj-c6rg

References

Advisory 1

https://www.wordfence.com/threat-intel/vulnerabilities/id/1c387b07-baf6-4c62-943e-4bd121160ceb?source=cve

Other 2

TI-2021-06568 Contact Form by Supsystic < 1.7.15 - Reflected Cross-Site scripting (XSS) CVSS 3.1MEDIUM 6.1
TI-2023-24116 WordPress Contact Form by Supsystic Plugin <= 1.7.27 is vulnerable to Cross Site Request Forgery (CSRF) CVSS 3.1HIGH 8.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences