CVE-2022-30935
9.1CRITICALAn authorization bypass in b2evolution allows remote, unauthenticated attackers to predict password reset tokens for any user through the use of a bad randomness function. This allows the attacker to
Published: 9/28/2022Updated: 5/21/2025
Description
An authorization bypass in b2evolution allows remote, unauthenticated attackers to predict password reset tokens for any user through the use of a bad randomness function. This allows the attacker to get valid sessions for arbitrary users, and optionally reset their password. Tested and confirmed in a default installation of version 7.2.3. Earlier versions are affected, possibly earlier major versions as well.
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Affected Products
b2evolutionb2evolution
References
- https://b2evolution.net/downloads/7-2-5-stablePatchVendor Advisory
- https://github.com/b2evolution/b2evolution/blob/master/inc/_core/_misc.funcs.php#L5955PatchThird Party Advisory
- https://github.com/b2evolution/b2evolution/issues/114Issue TrackingThird Party Advisory
- https://b2evolution.net/downloads/7-2-5-stablePatchVendor Advisory
- https://github.com/b2evolution/b2evolution/blob/master/inc/_core/_misc.funcs.php#L5955PatchThird Party Advisory
- https://github.com/b2evolution/b2evolution/issues/114Issue TrackingThird Party Advisory