CVE-2026-27176
CVE-2026-27176 is a medium-severity vulnerability in Mjdm Majordomo with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- CVSS v4: 5.1
- EPSS exploit prediction: 0% (36th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-8388
- Weakness: CWE-79
- Affected product: Mjdm Majordomo
- Published:
- Last modified:
Description
MajorDoMo (aka Major Domestic Module) contains a reflected cross-site scripting (XSS) vulnerability in command.php. The $qry parameter is rendered directly into the HTML page without sanitization via htmlspecialchars(), both in an input field value attribute and in a paragraph element. An attacker can inject arbitrary JavaScript by crafting a URL with malicious content in the qry parameter.
Frequently asked questions
- What is CVE-2026-27176?
- MajorDoMo (aka Major Domestic Module) contains a reflected cross-site scripting (XSS) vulnerability in command.php. The $qry parameter is rendered directly into the HTML page without sanitization via htmlspecialchars(), both in an input field value attribute and in a paragraph element. An attacker can inject arbitrary JavaScript by crafting a URL with malicious content in the qry parameter.
- How severe is CVE-2026-27176?
- CVE-2026-27176 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2026-27176 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-27176?
- CVE-2026-27176 affects Mjdm Majordomo. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-27176?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-27176 have an EU (EUVD) identifier?
- Yes. CVE-2026-27176 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8388.
- When was CVE-2026-27176 published?
- CVE-2026-27176 was published on 2026-02-18 and last updated on 2026-06-17.
References
- https://chocapikk.com/posts/2026/majordomo-revisited/
- https://github.com/sergejey/majordomo/pull/1177
- https://www.vulncheck.com/advisories/majordomo-reflected-cross-site-scripting-in-commandphp
Affected products (1)
- cpe:2.3:a:mjdm:majordomo:-:*:*:*:*:*:*:*
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