CVE-2026-2987

Simple Ajax Chat <= 20260217 - Unauthenticated Stored Cross-Site Scripting via 'c'

CVSS 6.1 MEDIUMEPSS 0.2%CWE-79

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.1EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

12 Mar 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

The Simple Ajax Chat plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'c' parameter in versions up to, and including, 20260217 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

specialk · Simple Ajax Chat – Add a Fast, Secure Chat Box

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References

https://plugins.trac.wordpress.org/changeset/3472258/simple-ajax-chat https://www.wordfence.com/threat-intel/vulnerabilities/id/3c07dec6-ddb7-45df-8bdf-57f562102c4b?source=cve