CVE Catalog

CVE-2023-4052

MediumCVSS 6.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Elevated risk
0.71%

53th percentile - higher than 53% of all known CVEs

Summary

The Firefox updater created a directory writable by non-privileged users. When uninstalling Firefox, any files in that directory would be recursively deleted with the permissions of the uninstalling user account.

Risk Assessment

The ability for non-privileged users to delete arbitrary files poses a serious risk to system integrity. An attacker could exploit this vulnerability for malicious actions on the system.

Recommendation

It is recommended to update Firefox to version 116 or later and Firefox ESR to version 115.1 or later to mitigate this vulnerability.

Related vulnerabilities

Original NVD description (English source)

The Firefox updater created a directory writable by non-privileged users. When uninstalling Firefox, any files in that directory would be recursively deleted with the permissions of the uninstalling user account. This could be combined with creation of a junction (a form of symbolic link) to allow arbitrary file deletion controlled by the non-privileged user. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 116, Firefox ESR < 115.1, and Thunderbird < 115.1.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS