CVE-2026-2987

MEDIUM

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

Title source: llm
STIX 2.1

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.

References (2)

Core 2

Scores

CVSS v3 6.1
EPSS 0.0017
EPSS Percentile 6.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (1)
specialk/Simple Ajax Chat – Add a Fast, Secure Chat Box < 20260217
Published Mar 12, 2026
Tracked Since Mar 12, 2026