CVE-2026-55186: medium-severity vulnerability in silverstripe-mfa
Silverstripe MFA: Can bypass MFA during password reset flow
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.2epss 0.3%
Silverstripe MFA provides multi-factor authentication for Silverstripe CMS. Prior to 6.0.0, the CMS 5 password reset flow can issue a logged-in session after a user changes a password but before the user's configured multi-factor authentication challenge is completed. An attacker with access to the user's email account can follow the reset flow and bypass the additional authentication factor. CMS 6 is not affected. This issue is fixed in version 6.0.0.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Affected products
silverstripe · silverstripe-mfaReferences
https://github.com/silverstripe/silverstripe-framework/commit/4b5cbd7ddf68721d8119583f0b9c04d4b4adc704https://github.com/silverstripe/silverstripe-framework/pull/11686https://github.com/silverstripe/silverstripe-mfa/commit/04a102b662ac2f555acc26f8d2e2d8dab3937a6ahttps://github.com/silverstripe/silverstripe-mfa/pull/603https://github.com/silverstripe/silverstripe-mfa/releases/tag/6.0.0https://github.com/silverstripe/silverstripe-mfa/security/advisories/GHSA-68wq-phq7-p2vghttps://www.silverstripe.org/download/security-releases/cve-2026-55186