Vulnerability · Published Mar 12, 2026 · Assigned by Wordfence

CVE-2026-2987Simple Ajax Chat <= 20260217 - Unauthenticated Stored Cross-Site Scripting via 'c'

Medium 6.1

In plain English

A medium-severity cross-site scripting in Simple Ajax Chat – Add a Fast, Secure Chat Box from specialk. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).

Severity (CVSS 3.1)6.1Medium

Exploit odds (30 days)0.2%top 92.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
specialk	Simple Ajax Chat – Add a Fast, Secure Chat Box	0 – through 20260217

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

In plain English

Official description

Affected products (as reported)

References