CVE-2026-55186
mediumSilverstripe MFA provides multi-factor authentication for Silverstripe CMS.
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
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/silverstripe/silverstripe-framework/commit/4b5cbd7ddf68721d8119583f0b9c... security-advisories@github.com
- https://github.com/silverstripe/silverstripe-framework/pull/11686 security-advisories@github.com
- https://github.com/silverstripe/silverstripe-mfa/commit/04a102b662ac2f555acc26f8d2e2d8dab3... security-advisories@github.com
- https://github.com/silverstripe/silverstripe-mfa/pull/603 security-advisories@github.com
- https://github.com/silverstripe/silverstripe-mfa/releases/tag/6.0.0 security-advisories@github.com
- https://github.com/silverstripe/silverstripe-mfa/security/advisories/GHSA-68wq-phq7-p2vg security-advisories@github.com
- https://www.silverstripe.org/download/security-releases/cve-2026-55186 security-advisories@github.com