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Case File

CVE-2021-3639

MEDIUM · CVSS 6.1 EPSS 0.77% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-08-22 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.1. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

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

GitHub PoC Links

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

CVE
CVE-2021-3639
Severity
MEDIUM
CVSS
6.1
EPSS
0.77%

Original NVD Description

A flaw was found in mod_auth_mellon where it does not sanitize logout URLs properly. This issue could be used by an attacker to facilitate phishing attacks by tricking users into visiting a trusted web application URL that redirects to an external and potentially malicious server. The highest threat from this liability is to confidentiality and integrity.

Related CVEs

Other vulnerabilities affecting the same vendor(s)