SAML Single Sign On – SSO Login <= 5.4.3 — Unauthenticated Privilege Escalation
CVE-2026-61979Published · Updated Action summary
Affected: ≤5.4.3Update to 5.4.4 or newer
All remediation steps- Severity
- Critical9.8
- CVSS
- 9.8CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
SAML Single Sign On – SSO Login miniorange-saml-20-single-sign-on
- Affected≤ 5.4.3
- Patched in5.4.4
Update to 5.4.4 or newer.
You are affected if you run ≤ 5.4.3. Version 5.4.4 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under SAML Single Sign On – SSO Login.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 5.4.4, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch SAML Single Sign On – SSO Login to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to sequence_X0.
The SAML Single Sign On – SSO Login plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 5.4.3. This makes it possible for unauthenticated attackers to elevate their privileges to that of an administrator.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in SAML Single Sign On – SSO Login
All 13| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.5 | Unauthenticated Denial of Service ≤6.1.0Update to 6.2.0 | CVE-2026-62126 | |
| High7.3 | Unauthenticated Privilege Escalation ≤5.4.7Update to 6.0.0 | CVE-2026-82842 | |
| High7.5 | Unauthenticated Authentication Bypass via X.509 Certificate Poisoning ≤5.4.6Update to 5.4.7 | CVE-2026-75807 | |
| High7.3 | Unauthenticated Privilege Escalation 4.8.85 – 5.4.6Update to 5.4.7 | CVE-2026-19842 | |
| Critical9.8 | Unauthenticated Authentication Bypass via SAMLResponse Parameter ≤5.4.4Update to 5.4.5 | CVE-2026-15981 |
- High7.5Unauthenticated Denial of Service
≤6.1.0Update to 6.2.0
- High7.3Unauthenticated Privilege Escalation
≤5.4.7Update to 6.0.0
- High7.5Unauthenticated Authentication Bypass via X.509 Certificate Poisoning
≤5.4.6Update to 5.4.7
- High7.3Unauthenticated Privilege Escalation
4.8.85 – 5.4.6Update to 5.4.7
- Critical9.8Unauthenticated Authentication Bypass via SAMLResponse Parameter
≤5.4.4Update to 5.4.5
Timeline
CVE published
Severity critical, CVSS 9.8
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.