CVE-2026-27181

HIGH EPSS 48.8%
Published Feb 18, 20264mo ago · Modified Feb 20, 20264mo ago
8.7 CVSS 4.0
High
Find Similar
Published Feb 18, 2026 4mo ago
Last Modified Feb 20, 2026 4mo ago

Description

MajorDoMo (aka Major Domestic Module) allows unauthenticated arbitrary module uninstallation through the market module. The market module's admin() method reads gr('mode') from $_REQUEST and assigns it to $this->mode at the start of execution, making all mode-gated code paths reachable without authentication via the /objects/?module=market endpoint. The uninstall mode handler calls uninstallPlugin(), which deletes module records from the database, executes the module's uninstall() method via eval(), recursively deletes the module's directory and template files using removeTree(), and removes associated cycle scripts. An attacker can iterate through module names and wipe the entire MajorDoMo installation with a series of unauthenticated GET requests.

CVSS Details

Base Score
8.7
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
48.8% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-862 Missing Authorization Authorization

Affected Products 1

VendorProductVersionRange
mjdmmajordomo*any

References 3

  • chocapikk.com https://chocapikk.com/posts/2026/majordomo-revisited/
    ExploitThird Party Advisory
  • github.com https://github.com/sergejey/majordomo/pull/1177
    ExploitIssue Tracking
  • vulncheck.com https://www.vulncheck.com/advisories/majordomo-unauthenticated-module-uninstall-via-market-endpoint
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.