CVE-2023-50266

Name: CVE-2023-50266
Creator: NVD / NIST
Published: 2023-12-15T21:15:09.147+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.59%

Last modified Jun 17, 2026

CVE-2023-50266 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Bazarr manages and downloads subtitles. In version 1.2.4, the proxy method in bazarr/bazarr/app/ui.py does not validate the user-controlled protocol and url variables and passes them to requests.get() without any sanitization, which leads to a blind server-side request forgery (SSRF). EPSS estimates a 0.59% chance of exploitation in the next 30 days.

Description

Bazarr manages and downloads subtitles. In version 1.2.4, the proxy method in bazarr/bazarr/app/ui.py does not validate the user-controlled protocol and url variables and passes them to requests.get() without any sanitization, which leads to a blind server-side request forgery (SSRF). This issue allows for crafting GET requests to internal and external resources on behalf of the server. 1.3.1 contains a partial fix, which limits the vulnerability to HTTP/HTTPS protocols.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.59%

43.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-918

Affected Software

Vendor	Product	Versions
Bazarr	Bazarr	1.2.4

References

https://github.com/morpheus65535/bazarr/commit/17add7fbb3ae1919a40d505470d499d46df9ae6bPatch
https://github.com/morpheus65535/bazarr/releases/tag/v1.3.1Release Notes
https://securitylab.github.com/advisories/GHSL-2023-192_GHSL-2023-194_bazarr/Patch, Third Party Advisory
https://github.com/morpheus65535/bazarr/commit/17add7fbb3ae1919a40d505470d499d46df9ae6bPatch
https://github.com/morpheus65535/bazarr/releases/tag/v1.3.1Release Notes
https://securitylab.github.com/advisories/GHSL-2023-192_GHSL-2023-194_bazarr/Patch, Third Party Advisory

Timeline

Published: Dec 15, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-50266?

How severe is CVE-2023-50266?

CVE-2023-50266 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.59% probability of exploitation in the next 30 days.

How do I fix CVE-2023-50266?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-50266?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST