PT-2026-24946 · Specialk · Simple Ajax Chat – Add A Fast

Kazuma Matsumoto · Published 2026-03-12 · Updated 2026-03-13 · CVE-2026-2987

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Simple Ajax Chat plugin for WordPress versions up to and including 20260217

Description The Simple Ajax Chat plugin for WordPress is susceptible to Stored Cross-Site Scripting through the c parameter. Insufficient input sanitization and output escaping allow unauthenticated attackers to inject arbitrary web scripts into pages. These scripts will execute whenever a user accesses the injected page.

Recommendations Update the Simple Ajax Chat plugin to a version newer than 20260217.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-2987

Affected Products

Simple Ajax Chat – Add A Fast

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-2987 · Security Note
• https://t.me/CVEtracker/47256 · Telegram Post
• https://wordfence.com/threat-intel/vulnerabilities/id/3c07dec6-ddb7-45df-8bdf-57f562102c4b?source=cve · Note
• https://twitter.com/CVEnew/status/2032410966345036083 · Twitter Post
• https://plugins.trac.wordpress.org/changeset/3472258/simple-ajax-chat · Note