CVE-2026-27177 (GCVE-0-2026-27177)
Vulnerability from cvelistv5 – Published: 2026-02-18 21:10 – Updated: 2026-11-08 14:01
VLAI
EPSS
VEX
Title
MajorDoMo Stored Cross-Site Scripting via Property Set Endpoint
Summary
MajorDoMo (aka Major Domestic Module) contains a stored cross-site scripting (XSS) vulnerability via the /objects/?op=set endpoint, which is intentionally unauthenticated for IoT device integration. User-supplied property values are stored raw in the database without sanitization. When an administrator views the property editor in the admin panel, the stored values are rendered without escaping in both a paragraph tag (SOURCE field) and a textarea element (VALUE field). The XSS fires on page load without requiring any click from the admin. Additionally, the session cookie lacks the HttpOnly flag, enabling session hijack via document.cookie exfiltration. An attacker can enumerate properties via the unauthenticated /api.php/data/ endpoint and poison any property with malicious JavaScript.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-20 19:27 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
VulnCheck
CNA
References
3 references
| URL | Tags |
|---|---|
| https://chocapikk.com/posts/2026/majordomo-revisited/ | third-party-advisory |
| https://github.com/sergejey/majordomo/pull/1177 | issue-trackingpatch |
| https://www.vulncheck.com/advisories/majordomo-st… | third-party-advisory |
Impacted products
Date Public
2026-02-17 00:00
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Nomenclature
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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