AUGUST 24, 2026
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Case File

CVE-2026-53962

MEDIUM · CVSS 5.4 EPSS 0.30% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-09 · Last synced 2026-08-08

CyberRota Analysis

AI-Generated

Discourse's open-source discussion platform is vulnerable due to insufficient SVG sanitization in user-uploaded content, which can lead to cross-site scripting (XSS) when users access specific URLs. This vulnerability affects versions prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, and poses a medium risk to user security. Organizations using affected versions should prioritize updating to the latest releases to mitigate potential exploitation risks.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-53962
Severity
MEDIUM
CVSS
5.4
EPSS
0.30%

Original NVD Description

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, insufficient SVG sanitization in upload and user avatar handling could lead to cross-site scripting when a user visited specific URLs that are not normally part of community browsing. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.

Related CVEs

Other vulnerabilities affecting the same vendor(s)