Privilege escalation in WP User Manager WordPress plugin
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-269.
Summary
The WP User Manager WordPress plugin from 2.9.21 before 2.9.26 does not keep its paid registration restrictions in force after the payment gateway is disconnected (CWE-269). A published paid registration form still assigns its configured role, so an unauthenticated remote attacker can register and gain an administrator-equivalent role without completing the payment. A public exploit is linked in the references.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
The WP User Manager WordPress plugin before 2.9.26 does not keep its paid-registration capability restrictions in force once the payment gateway is disconnected, while a published paid registration form continues to assign its configured role, allowing unauthenticated users to register and immediately obtain a privileged administrator-equivalent role without completing the payment meant to gate it.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | WP User Manager | 2.9.21 to before 2.9.26 | 2.9.26 | Patch available | CNA |
- WP User Manager VendorUnknown Affected 2.9.21 to before 2.9.26 Fixed in 2.9.26 Patch available CNA
Remediation
Update WP User Manager to version 2.9.26, which fixes the flaw.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA WP User Manager (Unknown) Fixed in 2.9.26
Timeline
- 2026-10-21 Threatist record created from CVE-2026-110523
- 2026-10-21 Alias added: GHSA-5mcj-pr4f-hvfp
References
Sources
- CVE-2026-110523 · CVE Program
- CVE-2026-110523 · NVD
- FIRST EPSS
- GHSA-5mcj-pr4f-hvfp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences