CVE-2026-55186
CMS Multi-Factor Authentication Bypass via Password Reset
Description
### Impact In CMS 5, the password reset flow let a user with multi-factor authentication enabled change their password and get a logged-in session before completing multi-factor authentication. Exploiting this requires access to the user's email account. CMS 6 is not affected.
INFO
Published Date :
Oct. 29, 2026, 4:32 p.m.
Last Modified :
Oct. 29, 2026, 4:32 p.m.
Remotely Exploit :
Yes !
Source :
github-security-advisories
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | github |
Solution
- Upgrade CMS to version 6 or a later release.
- Apply security patches if upgrading is not possible.
- Review and enforce MFA completion before session establishment.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-55186.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-55186 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-55186
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-55186 vulnerability anywhere in the article.