CVE-2023-50264

Bazarr Arbitrary file read in /system/backup/download/ endpoint

7.5 High

Bazarr manages and downloads subtitles. Prior to 1.3.1, Bazarr contains an arbitrary file read in /system/backup/download/ endpoint in bazarr/app/ui.py does not validate the user-controlled filename variable and uses it in the send_file function, which leads to an arbitrary file read on the system. This issue is fixed in version 1.3.1.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

0.92%Up 0.9 points since Dec 16, 2023

What each source reports

CVE List Score used 7.5

Bazarr Arbitrary file read in /system/backup/download/ endpoint

Record: CVE-2023-50264
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-22
Updated: 2026-11-02

EUVDEUVD-2023-55076 7.5

Record: EUVD-2023-55076
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-03

NVD 7.5

Record: CVE-2023-50264
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-22
Updated: 2026-11-02

OSV 7.5

Bazarr Arbitrary file read in /system/backup/download/ endpoint

Record: CVE-2023-50264
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-22
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, published	EUVD
Nov 2, 2026	first indexed	CVE List, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-50264 is a high vulnerability (CVSS 7.5) in Bazarr, published December 15, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.92%, the 60th percentile. No source names a fixed version.