CVE-2021-3639

MEDIUM
6.1
CVSS Score
Published: August 22, 2022 at 02:49 PM UTC
Updated: June 17, 2026 at 04:05 AM UTC
1 product affected across 1 vendorMod Auth Mellon

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Severity
MEDIUM6.1
Exploit prediction
EPSS 1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.18.0
Vendor states this is fixed in 0.18.0 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-601

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