Critical

Manage WP Worker <= 4.9.2 - Authentication Bypass

  • Disclosed: 11.02.2020
  • Updated: 11.10.2026 10:22

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.

Affected software

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PlatformPackageVulnerable versionsFixed in
WordPress plugin ManageWP Worker <= 4.9.2 4.9.3

References

CVSS score 9.8/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-288
Platform
WordPress
Package
ManageWP Worker
Disclosed
11.02.2020
Updated
11.10.2026 10:22

Sources and licenses

Wordfence Intelligence - 92915943-c6ff-46df-adbd-382eabe44021 - Wordfence Intelligence

Copyright 2012-2026 Defiant Inc.

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/
Wordfence Intelligence
Wordfence Intelligence - Defiant, Inc.
Copyright Defiant, Inc. All rights reserved except as granted below.
License grant, section 3.1 of the Wordfence Intelligence Terms and Conditions (January 26, 2026):

Subject to this Agreement, Company hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute the Service. Any copy you make for such purposes is authorized provided that you reproduce Company’s copyright designation, this license, and the license of any disclosed Company licensor in any such copy.

Full applicable Agreement: https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/

Vulnerability history: ManageWP Worker

All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
4
First → latest
02.2020 08.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 2
  • High 2

Disclosures per year

  1. 2020: 1
  2. 2021: 0
  3. 2022: 0
  4. 2023: 0
  5. 2024: 0
  6. 2025: 0
  7. 2026: 3
  1. Critical · 9.8 CVE-2026-18052 < 4.9.37 4.9.37
  2. Manage WP Worker <= 4.9.2 - Authentication Bypass this entry
    Critical · 9.8 92915943-c6ff-46df-adbd-382eabe44021 <= 4.9.2 4.9.3

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