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Medium · 6.4 CVE-2021-47931 EUVD-2021-34793GHSA-6jxm-mv8c-gh34

Exponent CMS 2.6 Multiple Vulnerabilities Stored XSS Authentication

Published May 10, 2026 · Updated May 26, 2026 · Assigned by VulnCheck

Description

Exponent CMS 2.6 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts through the Title and Text Block parameters in the text editing endpoint. Attackers can inject iframe payloads with embedded SVG onload events to execute arbitrary JavaScript. The application also exposes database credentials in responses and lacks brute-force protection on authentication endpoints.

Affected products

VendorProductAffectedFixed
Exponentcms Exponent CMS ≤ 2.6 —

References