CVE-2020-12137

CWE-79 — Cross-site Scripting (XSS)11 documents7 sources
Severity
6.1MEDIUM
EPSS
5.2%
top 10.06%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
GNU MailmanCanonical Ubuntu LinuxDebian Debian Linux+3 more
Timeline
PublishedApr 24
Latest updateMay 24

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NExploitability: 2.8 | Impact: 2.7

Affected Packages4 packages

▶NVDgnu/mailman2.0 — 2.1.30
▶Ubuntumailman< 1:2.1.20-1ubuntu0.4+2
▶NVDopensuse/leap15.2

Also affects: Debian Linux 10.0, 8.0, 9.0, Fedora 31, 32, Ubuntu Linux 16.04, 18.04

🔴Vulnerability Details

5
GHSA
GHSA-7mvx-jp9h-p8gh: GNU Mailman 2↗2022-05-24
▶
OSV
mailman vulnerabilities↗2021-11-01
▶
OSV
mailman vulnerabilities↗2020-04-29
▶
CVEList
CVE-2020-12137: GNU Mailman 2↗2020-04-24
▶
OSV
CVE-2020-12137: GNU Mailman 2↗2020-04-24
▶

📋Vendor Advisories

3
Ubuntu
Mailman vulnerabilities↗2021-11-01
▶
Ubuntu
Mailman vulnerabilities↗2020-04-29
▶
Red Hat
mailman: XSS via file attachments in list archives↗2020-02-24
▶

💬Community

2
Bugzilla
CVE-2020-12137 mailman: XSS via file attachments in list archives [fedora-all]↗2020-04-30
▶
Bugzilla
CVE-2020-12137 mailman: XSS via file attachments in list archives↗2020-04-30
▶
CVE-2020-12137 (MEDIUM CVSS 6.1) | GNU Mailman 2.x before 2.1.30 uses | cvebase.io