PT-2026-39507 · Exponentcms · Exponent Cms

Picaro_O · Published 2026-05-10 · Updated 2026-05-10 · CVE-2021-47931

NVD

CVSS v3.1

6.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

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, and the application also exposes database credentials in responses and lacks brute-force protection on authentication endpoints.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-47931

Affected Products

Exponent Cms

References · 4

• 🔥 https://exploit-db.com/exploits/50611 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-47931 · Security Note
• https://exponentcms.org · Note
• https://vulncheck.com/advisories/exponent-cms-multiple-vulnerabilities-stored-xss-authentication · Note