CVE-2025-32068 Revoking authorization of OAuth2 consumer does not invalidate refresh tokens

Medium 5.4 Published Updated

Attackers can retain access via refresh tokens after revoking OAuth2 consumer authorization, potentially leading to account takeover.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-32068?

CVE-2025-32068 is a medium-severity authentication bypass vulnerability in The Wikimedia Foundation Mediawiki - OAuth Extension, published on 11 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Incorrect Authorization vulnerability in The Wikimedia Foundation Mediawiki - OAuth Extension allows Authentication Bypass.This issue affects Mediawiki - OAuth Extension: from 1.39 through 1.43.

Weakness: CWE-863

Which versions are affected by CVE-2025-32068?

How do I fix CVE-2025-32068?

No fix has been published for CVE-2025-32068 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2025-32068 being exploited?

There is no known exploitation of CVE-2025-32068 in the wild and no public exploit code.

Sources

Also known as GHSA-4xv5-48m7-9qhq.

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