EUVD-2026-62293
GHSA-qj54-25r3-fmh2
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Initial certificate injection is network-reachable and unauthenticated (AV:N, PR:N), but administrator UI interaction is explicitly required to promote the certificate (UI:R); successful exploitation yields full site takeover (C:H/I:H/A:H).
Primary rating from Vendor (wpscan).
CVSS VectorVendor: wpscan
Lifecycle Timeline
5DescriptionCVE.org
The SAML Single Sign On WordPress plugin before 5.4.7 does not verify the signature of a SAML response before storing the certificate it carries, and offers an administrator a one-click control that promotes that stored certificate to the site's trusted signing certificate, allowing unauthenticated attackers to have a certificate of their own trusted and then authenticate as any user, including an administrator.
AnalysisAI
Authentication bypass in the SAML Single Sign On WordPress plugin (versions 4.8.85 through below 5.4.7) enables unauthenticated network attackers to inject an arbitrary certificate into the site's SAML trust store by exploiting the plugin's failure to verify incoming SAML response signatures before persisting embedded certificates. Once stored, that attacker-controlled certificate can be promoted to the site's active trusted signing authority via a single administrator UI click, after which the attacker can forge SAML assertions and authenticate as any WordPress user, including site administrators. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The SAML Single Sign On WordPress plugin must be installed, active, and configured for SAML SSO with a live Identity Provider integration - the vulnerable code path is only reachable when the plugin is processing SAML responses. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.8 score reflects the high combined impact (C:H/I:H/A:H) and the accessible initial attack vector (AV:N/AC:L/PR:N), but the UI:R metric is the critical limiting signal: the certificate injection step is unauthenticated and network-reachable, yet the attack chain cannot complete without an administrator actively clicking the certificate trust promotion control. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | The primary remediation is to update the SAML Single Sign On plugin to version 5.4.7 or later, which is confirmed as the vendor-patched release by the WPScan advisory (https://wpscan.com/vulnerability/7b79d86e-d3f8-4d4f-929b-fd00540cc00f/) and corroborated by EUVD-2026-62293 and NVD (https://nvd.nist.gov/vuln/detail/CVE-2026-19842). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, audit all WordPress instances to identify those running the SAML Single Sign On plugin and verify version numbers against the affected range (4.8.85-5.4.6). …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
The mailSend function in the isMail transport in PHPMailer before 5.2.18 might allow remote attackers to pass extra para
The isMail transport in PHPMailer before 5.2.20 might allow remote attackers to pass extra parameters to the mail comman
The Backup Migration plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1
The Hash Form - Drag & Drop Form Builder plugin for WordPress is vulnerable to arbitrary file uploads due to missing fil
Authentication bypass in the LiteSpeed Cache WordPress plugin (versions prior to 6.5.0.1) allows unauthenticated remote
The GiveWP - Donation Plugin and Fundraising Platform plugin for WordPress is vulnerable to PHP Object Injection in all
The Simple File List plugin for WordPress through version 4.2.2 contains an unauthenticated remote code execution vulner
The AI Engine WordPress plugin through version 3.1.3 exposes Bearer Token values through the /mcp/v1/ REST API endpoint
The SureTriggers WordPress plugin through version 1.0.82 contains a privilege escalation vulnerability that allows unaut
The Ninja Forms plugin before 2.9.42.1 for WordPress allows remote attackers to conduct PHP object injection attacks via
The Business Directory Plugin - Easy Listing Directories for WordPress plugin for WordPress is vulnerable to time-based
Remote code execution in WordPress 6.9.x (before 6.9.5) and 7.0.x (before 7.0.2) arises from a REST API batch endpoint r
Same weakness CWE-287 – Improper Authentication
View allSame technique Authentication Bypass
View allShare
External POC / Exploit Code
Leaving vuln.today