CVE-2026-72553: Elkarte Forum Elkarte

Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days.

A stored cross-site scripting vulnerability in ElkArte Forum 2.0 Beta 1 allows any registered member to inject persistent JavaScript into the profile fields cust_blurb and cust_locate. The fields are saved without HTML encoding and rendered unescaped in profile views visible to administrators. An attacker can craft a payload that executes in an administrator session, enabling session hijacking or privilege escalation.

Affected products

• Elkarte Forum Elkarte: up to and including 2.0 Beta 1

Published 2026-08-11. Last modified 2026-09-03.