Medium severity · published Oct 25, 2023
CVE-2023-5727
The executable file warning was not presented when downloading .msix, .msixbundle, .appx, and .appxbundle files, which can run commands on a user's computer
6.5
CVSS
0.8%
EPSS
No
On KEV
Description
The executable file warning was not presented when downloading .msix, .msixbundle, .appx, and .appxbundle files, which can run commands on a user's computer.
*Note: This issue only affected Windows operating systems. Other operating systems are unaffected.* This vulnerability affects Firefox < 119, Firefox ESR < 115.4, and Thunderbird < 115.4.1.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 57% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 119.0 · source: NVD
FE
Firefox Esr · Mozilla
before 115.4 · source: NVD
TH
Thunderbird · Mozilla
before 115.4.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-5727
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-5727
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1847180
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-45/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-46/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-47/
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