CVE-2020-12137 - CVE House
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Status published Medium CVE-2020-12137

GNU Mailman 2.x before 2.1.30 uses the .obj extension for...

Vulnerability Description

GNU Mailman 2.x before 2.1.30 uses the .obj extension for scrubbed application/octet-stream MIME parts. This behavior may contribute to XSS attacks against list-archive visitors, because an HTTP reply from an archive web server may lack a MIME type, and a web browser may perform MIME sniffing, conclude that the MIME type should have been text/html, and execute JavaScript code.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

mailman, debian linux, fedora, ubuntu linux, backports sle, leap
Vulnerable Versions:
2.0, 9.0, 10.0, 8.0, 31, 32, 16.04, 18.04, 15.0, 15.2

Timeline

Official Publish: April 24th, 2020
Last Modified: August 4th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.