by Kastro
Paper/Archive/CVE-2026-27174

CVE-2026-27174

sergejey MajorDoMo — MajorDoMo Unauthenticated Remote Code Execution via Admin Console Eval

EPSS 7%public exploitCVSS 9.8
critical.is priorityof 100
58
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 94.0.940 × 2018.8Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
MajorDoMo≤ *–CNA

Scores by source

VulnCheck (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)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
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

writeupchocapikk.com/posts/2026/majordomo-revisitedrefgithub.com/sergejey/majordomo/pull/1177writeupvulncheck.com/advisories/majordomo-unauthenticated-remote-code-execution-via-admin-console-eval