PT-2026-41452 · Couchcms · Couchcms

Xxcdd · Published 2026-05-16 · Updated 2026-05-16 · CVE-2021-47955

Mitre

CVSS v3.1

5.4

Medium

Base vector

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

CouchCMS 2.2.1 contains a cross-site scripting vulnerability that allows authenticated attackers to execute arbitrary JavaScript by uploading malicious SVG files through the file upload functionality. Attackers can upload SVG files containing embedded script tags to the browse.php endpoint, which are then executed in users' browsers when the files are accessed or previewed.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-47955

Affected Products

Couchcms

References · 4

• 🔥 https://exploit-db.com/exploits/49636 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-47955 · Security Note
• https://github.com/CouchCMS/CouchCMS · Note
• https://vulncheck.com/advisories/couchcms-cross-site-scripting-via-svg-file-upload · Note