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CVE-2026-41940

WebPros cPanel and WHM Authentication Bypass via Login Flow

Published
Last modified
published
Listed in CISA KEV
Fix
Fixed in 11.86.0.41, 11.94.0.28, 11.102.0.39, 11.110.0.97, 11.118.0.63, and 7 more
1 on Exploit-DB
  • Exploitation: active
  • Automatable: yes
  • Technical impact: total

Summary

This vulnerability affects WebPros cPanel and WHM, which are web hosting control panel software used to manage servers and websites. An unauthenticated remote attacker could exploit a flaw in the login process to bypass authentication and gain unauthorized access to the control panel.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

cPanel and WHM versions after 11.40 contain an authentication bypass vulnerability in the login flow that allows unauthenticated remote attackers to gain unauthorized access to the control panel.

Timeline

  1. CISA SSVC assessment

    Exploitation: active · Automatable: yes · Technical impact: total

  2. CVE published
  3. Added to CISA KEV

    CISA has evidence of exploitation in the wild

  4. CISA remediation deadline

    Due date for US federal agencies to patch

  5. Public exploit on Exploit-DB

    EDB-52574

  6. Record last updated
  7. EPSS reached 10%

    FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

  • WebPros cPanel

    From 11.40.0.0 · fixed in 11.86.0.41; From 11.88.0.0 · fixed in 11.94.0.28; From 11.96.0.0 · fixed in 11.102.0.39; From 11.104.0.0 · fixed in 11.110.0.97; From 11.112.0.0 · fixed in 11.118.0.63; From 11.120.0.0 · fixed in 11.124.0.35; From 11.126.0.0 · fixed in 11.126.0.54; From 11.128.0.0 · fixed in 11.130.0.19; From 11.132.0.0 · fixed in 11.132.0.29; From 11.134.0.0 · fixed in 11.134.0.20; From 11.136.0.0 · fixed in 11.136.0.5

  • WebPros WP Squared

    fixed in 11.136.1.7

  • WebPros WHM

    From 11.40.0.0 · fixed in 11.86.0.41; From 11.88.0.0 · fixed in 11.94.0.28; From 11.96.0.0 · fixed in 11.102.0.39; From 11.104.0.0 · fixed in 11.110.0.97; From 11.112.0.0 · fixed in 11.118.0.63; From 11.120.0.0 · fixed in 11.124.0.35; From 11.126.0.0 · fixed in 11.126.0.54; From 11.128.0.0 · fixed in 11.130.0.19; From 11.132.0.0 · fixed in 11.132.0.29; From 11.134.0.0 · fixed in 11.134.0.20; From 11.136.0.0 · fixed in 11.136.0.5

References 6

support.cpanel.net

docs.cpanel.net

docs.wpsquared.com

namecheap.com

vulncheck.com

Exploit-DB