CVE-2026-27174

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-02-19. the CNA's CVSS baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Weaponized
9.8EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • Public exploit code is available (Metasploit, ssvc poc, public exploit)
CISA-KEV: Not listedEPSS PROB: 7%CVSS: 9.8Exploit: Metasploit · ssvc poc · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
85(Attend)
EG Risk 85/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation65% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
7%
EPSS %ILE
94%
KEV
Not listed

Published

February 18, 2026

Last Modified

June 23, 2026

Advisory Details (3)

Auto-updated Aug 29, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
generic

MajorDoMo Unauthenticated Remote Code Execution via Admin Console Eval | Advisories | VulnCheck

https://www.vulncheck.com/advisories/majordomo-unauthenticated-remote-code-execution-via-admin-console-eval
github_pr

Fix: 8 security vulnerabilities (3 RCE, 1 module uninstall, 1 SQLi, 2 stored XSS, 1 reflected XSS)

Fix merged in sergejey/majordomo PR #1177 on 2026-02-18 — awaiting tagged release

https://github.com/sergejey/majordomo/pull/1177
generic

MajorDoMo Revisited: What I Missed in 2023 - Chocapikk's Cybersecurity Blog

https://chocapikk.com/posts/2026/majordomo-revisited/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 52× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 104 total refreshes for this CVE.

  1. 2026-09-01 04:39 UTCEPSS rescore
  2. 2026-08-30 19:17 UTCEPSS rescore
  3. 2026-08-30 01:22 UTCEPSS rescore
  4. 2026-08-28 21:41 UTCEPSS rescore
  5. 2026-08-27 14:25 UTCEPSS rescore
  6. 2026-08-26 14:46 UTCEPSS rescore
  7. 2026-08-25 13:48 UTCEPSS rescore
  8. 2026-08-23 00:19 UTCEPSS rescore
  9. 2026-08-21 23:49 UTCEPSS rescore
  10. 2026-08-20 22:55 UTCEPSS rescore
  11. 2026-08-19 17:03 UTCEPSS rescore
  12. 2026-08-18 13:48 UTCEPSS rescore
  13. 2026-08-16 14:56 UTCEPSS rescore
  14. 2026-08-16 02:14 UTCEPSS rescore
  15. 2026-08-15 01:59 UTCEG score recompute
  16. 2026-08-15 01:59 UTCGHSA enrichment
  17. 2026-08-15 01:30 UTCEPSS rescore
  18. 2026-08-14 21:55 UTCGHSA enrichment
  19. 2026-08-14 13:49 UTCGHSA enrichment
  20. 2026-08-14 09:46 UTCEG score recompute
  21. 2026-08-14 09:46 UTCGHSA enrichment
  22. 2026-08-13 22:00 UTCEPSS rescore
  23. 2026-08-13 02:02 UTCEG score recompute
  24. 2026-08-13 02:02 UTCGHSA enrichment
  25. 2026-08-12 13:50 UTCEPSS rescore
Show 75 more
  1. 2026-08-11 13:42 UTCEPSS rescore
  2. 2026-08-11 07:24 UTCEG score recompute
  3. 2026-08-11 07:24 UTCGHSA enrichment
  4. 2026-08-11 00:00 UTCEPSS rescore
  5. 2026-08-10 09:40 UTCGHSA enrichment
  6. 2026-08-10 02:18 UTCGHSA enrichment
  7. 2026-08-09 22:13 UTCGHSA enrichment
  8. 2026-08-09 18:10 UTCGHSA enrichment
  9. 2026-08-09 14:05 UTCEG score recompute
  10. 2026-08-09 14:05 UTCGHSA enrichment
  11. 2026-08-09 13:46 UTCEPSS rescore
  12. 2026-08-08 16:37 UTCEPSS rescore
  13. 2026-08-08 09:50 UTCGHSA enrichment
  14. 2026-08-08 05:47 UTCGHSA enrichment
  15. 2026-08-08 01:43 UTCGHSA enrichment
  16. 2026-08-07 21:40 UTCEG score recompute
  17. 2026-08-07 21:40 UTCGHSA enrichment
  18. 2026-08-06 13:46 UTCEPSS rescore
  19. 2026-08-06 07:36 UTCGHSA enrichment
  20. 2026-08-06 03:34 UTCEG score recompute
  21. 2026-08-06 03:33 UTCGHSA enrichment
  22. 2026-08-05 19:17 UTCEPSS rescore
  23. 2026-08-04 15:10 UTCEPSS rescore
  24. 2026-08-03 10:36 UTCEPSS rescore
  25. 2026-08-03 01:31 UTCGHSA enrichment
  26. 2026-08-02 20:19 UTCEG score recompute
  27. 2026-08-02 20:19 UTCGHSA enrichment
  28. 2026-08-02 02:26 UTCEPSS rescore
  29. 2026-08-01 04:16 UTCEPSS rescore
  30. 2026-07-30 16:27 UTCEPSS rescore
  31. 2026-07-30 01:30 UTCEPSS rescore
  32. 2026-07-28 15:36 UTCEPSS rescore
  33. 2026-07-25 14:18 UTCEPSS rescore
  34. 2026-07-25 14:17 UTCEPSS rescore
  35. 2026-07-24 14:17 UTCEPSS rescore
  36. 2026-07-23 14:18 UTCEPSS rescore
  37. 2026-07-23 14:18 UTCEPSS rescore
  38. 2026-07-23 03:07 UTCEG score recompute
  39. 2026-07-22 14:08 UTCEPSS rescore
  40. 2026-07-22 14:08 UTCEPSS rescore
  41. 2026-07-21 15:24 UTCEPSS rescore
  42. 2026-07-21 15:24 UTCEPSS rescore
  43. 2026-07-20 17:08 UTCEPSS rescore
  44. 2026-07-20 17:08 UTCEPSS rescore
  45. 2026-07-19 14:31 UTCEPSS rescore
  46. 2026-07-19 14:31 UTCEPSS rescore
  47. 2026-07-19 02:29 UTCEPSS rescore
  48. 2026-07-18 10:04 UTCEPSS rescore
  49. 2026-07-18 10:04 UTCEPSS rescore
  50. 2026-07-16 17:03 UTCEPSS rescore
  51. 2026-07-16 17:03 UTCEPSS rescore
  52. 2026-07-15 16:57 UTCEPSS rescore
  53. 2026-07-15 16:57 UTCEPSS rescore
  54. 2026-07-15 02:00 UTCEPSS rescore
  55. 2026-07-15 02:00 UTCEPSS rescore
  56. 2026-07-13 22:30 UTCEPSS rescore
  57. 2026-07-12 05:46 UTCEPSS rescore
  58. 2026-07-11 08:27 UTCEPSS rescore
  59. 2026-07-09 19:10 UTCEPSS rescore
  60. 2026-07-08 15:15 UTCEPSS rescore
  61. 2026-07-08 15:15 UTCEPSS rescore
  62. 2026-07-07 13:46 UTCEPSS rescore
  63. 2026-07-06 16:27 UTCEPSS rescore
  64. 2026-07-06 16:27 UTCEPSS rescore
  65. 2026-07-06 02:23 UTCEPSS rescore
  66. 2026-07-06 02:23 UTCEPSS rescore
  67. 2026-07-05 02:30 UTCEPSS rescore
  68. 2026-07-04 06:31 UTCEPSS rescore
  69. 2026-07-04 06:31 UTCEPSS rescore
  70. 2026-07-01 15:06 UTCEPSS rescore
  71. 2026-07-01 15:06 UTCEPSS rescore
  72. 2026-06-30 23:22 UTCEPSS rescore
  73. 2026-06-30 23:22 UTCEPSS rescore
  74. 2026-06-29 14:06 UTCEPSS rescore
  75. 2026-06-28 04:56 UTCEPSS rescore

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 Metasploit module). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Metasploitexploit/multi/http/majordomo_console_eval_rce✓ verified
    First seen Feb 18, 2026

    MajorDoMo Console Eval Unauthenticated RCE

    Open source ↗
  • Nucleihttp/cves/2026/CVE-2026-27174.yaml
    First seen Jan 1, 2026

    MajorDoMo - Unauthenticated RCE

    Open source ↗

Frequently asked(5)

What is CVE-2026-27174?
CVE-2026-27174 is a critical vulnerability published on February 18, 2026. 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…
When was CVE-2026-27174 disclosed?
CVE-2026-27174 was first published in the National Vulnerability Database on February 18, 2026, with the most recent update on June 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-27174 actively exploited?
CVE-2026-27174 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7% probability of exploitation in the next 30 days, which ranks it in the top 6.3% of all scored CVEs.
What is the CVSS score of CVE-2026-27174?
CVE-2026-27174 has a CVSS v4.0 base score of 9.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-27174?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-27174, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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