Manage WP Worker <= 4.9.2 — Authentication Bypass
92915943-c6ff-46df-adbd-382eabe44021Published · Updated Action summary
Affected: ≤4.9.2Update to 4.9.3 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?
ManageWP Worker worker
- Affected≤ 4.9.2
- Patched in4.9.3
Update to 4.9.3 or newer.
You are affected if you run ≤ 4.9.2. Version 4.9.3 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under ManageWP Worker.
- 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 4.9.3, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch ManageWP Worker to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Matt Barry.
The Manage WP Worker plugin for WordPress is vulnerable to authentication bypass in versions up to, and including 4.9.2, due to the use of global keys that every installation of Manage WP worker uses for signature verification. This makes it possible to specially craft a request that can be used to auto-login as any user on any WordPress site running the plugin.
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 ManageWP Worker
All 4| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Critical9.8 | Authentication Bypass <4.9.37Update to 4.9.37 | CVE-2026-18052 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting via 'MWP-Key-Name' Header ≤4.9.31Update to 4.9.32 | CVE-2026-3718 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting ≤4.9.31Update to 4.9.32 | CVE-2026-39463 |
- Critical9.8Authentication Bypass
<4.9.37Update to 4.9.37
- High7.2Unauthenticated Stored Cross-Site Scripting via 'MWP-Key-Name' Header
≤4.9.31Update to 4.9.32
- High7.2Unauthenticated Stored Cross-Site Scripting
≤4.9.31Update to 4.9.32
Timeline
CVE published
Severity critical, CVSS 9.8
Record last updated
Sources & licenses
- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- 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.