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Description

MajorDoMo (aka Major Domestic Module) allows unauthenticated remote code execution via the admin panel's PHP console feature. An include order bug in modules/panel.class.php causes execution to continue past a redirect() call that lacks an exit statement, allowing unauthenticated requests to reach the ajax handler in inc_panel_ajax.php. The console handler within that file passes user-supplied input from GET parameters (via register_globals) directly to eval() without any authentication check. An attacker can execute arbitrary PHP code by sending a crafted GET request to /admin.php with ajax_panel, op, and command parameters.

PUBLISHED Reserved 2026-02-18 | Published 2026-02-18 | Updated 2026-02-18 | Assigner VulnCheck




CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

Improper Control of Generation of Code ('Code Injection')

Product status

Default status
unknown

Any version
affected

Credits

Valentin Lobstein finder

References

chocapikk.com/posts/2026/majordomo-revisited/ (MajorDoMo Revisited: What I Missed in 2023) third-party-advisory

github.com/sergejey/majordomo/pull/1177 (Fix PR: sergejey/majordomo#1177) patch

www.vulncheck.com/...e-code-execution-via-admin-console-eval (VulnCheck Advisory: MajorDoMo Unauthenticated Remote Code Execution via Admin Console Eval) third-party-advisory

cve.org (CVE-2026-27174)

nvd.nist.gov (CVE-2026-27174)

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