CVE-2021-23956 — Mozilla Firefox vulnerability

7 documents7 sources
Severity
6.5MEDIUMNVD
EPSS
0.2%
top 60.65%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Mozilla FirefoxDebian Firefox
Timeline
PublishedFeb 26
Latest updateMay 24

Description

An ambiguous file picker design could have confused users who intended to select and upload a single file into uploading a whole directory. This was addressed by adding a new prompt. This vulnerability affects Firefox < 85.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NExploitability: 2.8 | Impact: 3.6

Affected Packages5 packages

▶debiandebian/firefox< firefox 85.0-1 (sid)
▶CVEListV5mozilla/firefox< 85
▶NVDmozilla/firefox< 85.0
▶Ubuntumozilla/firefox< 85.0+build1-0ubuntu0.16.04.1+2
▶mozillamozilla/firefox

Patches

Patch: bugzilla.mozilla.org ↗Patch: bugzilla.mozilla.org ↗

🔴Vulnerability Details

2
GHSA
GHSA-vjq2-3fhj-f82c: An ambiguous file picker design could have confused users who intended to select and upload a single file into uploading a whole directory↗2022-05-24
▶
OSV
CVE-2021-23956: An ambiguous file picker design could have confused users who intended to select and upload a single file into uploading a whole directory↗2021-01-26
▶

📋Vendor Advisories

3
Ubuntu
Firefox vulnerabilities↗2021-02-01
▶
Debian
CVE-2021-23956: firefox - An ambiguous file picker design could have confused users who intended to select...↗2021
▶
Mozilla
Mozilla Foundation Security Advisory 2021-03: CVE-2021-23956↗
▶