CVE-2026-2987
MEDIUM EPSS 6.8%
Published Mar 12, 20263mo ago · Modified Jun 17, 20261w ago
6.1 CVSS 3.1
Published Mar 12, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago
Description
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 Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Low
Availability None
Threat Intelligence
EPSS Exploit Probability
6.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-79 Cross-site Scripting Injection
References 2
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3472258/simple-ajax-chat
- wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/3c07dec6-ddb7-45df-8bdf-57f562102c4b?source=cve
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.