CVE-2024-3863 — Unrestricted File Upload in Mozilla Firefox

CWE-434 — Unrestricted File UploadCWE-357 — Insufficient UI Warning of Dangerous Operations8 documents6 sources
Severity
9.8CRITICALNVD
EPSS
0.3%
top 43.31%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Mozilla FirefoxMozilla Firefox ESRMozilla Thunderbird
Timeline
PublishedApr 16

Description

The executable file warning was not presented when downloading .xrm-ms files. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.* This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages5 packages

▶CVEListV5mozilla/firefoxunspecified — 125
▶NVDmozilla/firefox< 115.10.0+1
▶CVEListV5mozilla/firefox_esrunspecified — 115.10
▶CVEListV5mozilla/thunderbirdunspecified — 115.10
▶NVDmozilla/thunderbird< 115.10

🔴Vulnerability Details

2
GHSA
GHSA-3vhm-v3w9-8mr8: The executable file warning was not presented when downloading↗2024-04-16
▶
CVEList
CVE-2024-3863: The executable file warning was not presented when downloading↗2024-04-16
▶

📋Vendor Advisories

5
Red Hat
Mozilla: Download Protections were bypassed by .xrm-ms files on Windows↗2024-04-16
▶
Debian
CVE-2024-3863: firefox - The executable file warning was not presented when downloading .xrm-ms files. ...↗2024
▶
Mozilla
Mozilla Foundation Security Advisory 2024-18: CVE-2024-3863↗
▶
Mozilla
Mozilla Foundation Security Advisory 2024-20: CVE-2024-3863↗
▶
Mozilla
Mozilla Foundation Security Advisory 2024-19: CVE-2024-3863↗
▶
CVE-2024-3863 — Unrestricted File Upload in Mozilla | cvebase