CVE-2021-24002
HIGHFirefox < 88.0 and Firefox ESR < 78.10 - Command Injection via FTP URL Newline Encoding
Title source: llmDescription
When a user clicked on an FTP URL containing encoded newline characters (%0A and %0D), the newlines would have been interpreted as such and allowed arbitrary commands to be sent to the FTP server. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
References (4)
Core 4
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://www.mozilla.org/security/advisories/mfsa2021-14/
Release Notes, Vendor Advisory x_refsource_misc
https://www.mozilla.org/security/advisories/mfsa2021-16/
Release Notes, Vendor Advisory x_refsource_misc
https://www.mozilla.org/security/advisories/mfsa2021-15/
Issue Tracking, Permissions Required, Vendor Advisory x_refsource_misc
https://bugzilla.mozilla.org/show_bug.cgi?id=1702374
Scores
CVSS v3
8.8
EPSS
0.0046
EPSS Percentile
64.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Details
CWE
CWE-74
Status
published
Products (3)
mozilla/firefox
< 88.0
mozilla/firefox_esr
< 78.10
mozilla/thunderbird
< 78.10
Published
Jun 24, 2021
Tracked Since
Feb 18, 2026