CVE-2026-2987CWE-79

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

Medium · published March 12, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
21.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00297 · 21.2th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-03-12T12:26Z
EPSS history
Timeline
  • 12 MAR 12:26Z
    Simple Ajax Chat <= 20260217 - Unauthenticated Stored Cross-Site Scripting via 'c'
    cvelistv5