Security readout for executives and security teams
Plain-English summary
This WordPress SSO plugin flaw can let an unauthenticated attacker log in as another site user, including an administrator. For affected sites, the business risk is full website takeover, data exposure, content changes, and service disruption. No active exploitation is stated in the provided sources.
Executive priority
Treat as urgent for any WordPress site using this plugin. The vulnerability can bypass login controls and reach administrator access. Prioritize internet-facing, revenue-generating, or data-sensitive sites first.
Technical view
CVE-2026-2628 is an authentication bypass in All-in-One Microsoft 365 & Entra ID / Azure AD SSO Login for WordPress, reported for versions up to and including 2.2.5. It is mapped to CWE-288 with CVSS 3.1 score 9.8, network exploitable, low complexity, no privileges, and no user interaction.
Likely exposure
Exposure is limited to WordPress sites running the login-with-azure / All-in-One Microsoft 365 & Entra ID / Azure AD SSO Login plugin at version 2.2.5 or earlier. Sites using it for administrator SSO are especially sensitive.
Exploitation context
The provided sources describe unauthenticated authentication bypass and administrator login impact. CISA KEV status is false in the bundle, and no cited source confirms active exploitation or public weaponization.
Researcher notes
Evidence is strong for severity and impact, but the bundle does not name a fixed version or detailed root cause. The affected metadata is sparse, so confirm product identity and versioning against Wordfence, WordPress plugin trac, and vendor release notes.
Mitigation direction
- Identify all WordPress sites using the affected SSO plugin.
- Check whether the installed version is 2.2.5 or earlier.
- Review Wordfence and plugin vendor guidance for a fixed release.
- Update to a fixed version if one is available from trusted channels.
- If no fix is available, disable the plugin until vendor guidance is clear.
- Review administrator accounts and recent login activity for anomalies.
Validation and detection
- Inventory WordPress plugins and confirm presence of login-with-azure.
- Record the installed plugin version for each site.
- Compare versions against the vulnerable range: up to and including 2.2.5.
- Confirm whether SSO login paths remain enabled after mitigation.
- Review web, WordPress, and authentication logs for unexpected administrator sessions.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-288: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-2628 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Authentication Bypass Using an Alternate Path or Channel
Authentication Bypass Using an Alternate Path or Channel represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.