Vulnerabilities

Vulnerability · CVE-2026-2628

The All-in-One Microsoft 365 & Entra ID / Azure AD SSO Login plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 2.2.5.

Published Mar 3, 2026 · catalog updated Jun 17, 2026 · The All-in-One Microsoft 365

Check if you run it

No confirmed exploitation is on record for CVE-2026-2628. EPSS is 0.73%. Act only if a listed version of The All-in-One Microsoft 365 is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (The All-in-One Microsoft 365).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.73%
Remediation
Version ranges on file
Affected products
stated named in the record

The All-in-One Microsoft 365 & Entra ID / Azure AD SSO Login plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 2.2.5. This makes it possible for unauthenticated attackers to bypass authentication and log in as other users, including administrators.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • stated named in the record<= 2.2.5

How to fix CVE-2026-2628

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-2628. EPSS is 0.73%. Act only if a listed version of The All-in-One Microsoft 365 is installed.

Which versions are affected?

Compare what you have installed with named in the record <= 2.2.5. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-288. EPSS 0.73%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 3, 2026 · NIST NVD

    Detected

    The All-in-One Microsoft 365 & Entra ID / Azure AD SSO Login plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 2.2.5. This makes it possible for unauthenticated attackers to bypass authentication and log in as other users, including administrators.

  2. Jun 17, 2026 · NIST NVD

    Updated

    The All-in-One Microsoft 365 & Entra ID / Azure AD SSO Login plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 2.2.5. This makes it possible for unauthenticated attackers to bypass authentication and log in as other users, including administrators.

Sources

  • CVE.orgVulnerability recordCVE-2026-2628

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-2628

    30-day exploitation probability 0.7%

    first.org
  • NIST NVDVulnerability recordCVE-2026-2628

    The All-in-One Microsoft 365 & Entra ID / Azure AD SSO Login plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 2.2.5. This makes it possible for unauthenticated attackers to bypass authentication and log in as other users, including

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.