CVE-2024-39899

PrivateBin allows shortening of URLs for other domains

Description

PrivateBin is an online pastebin where the server has zero knowledge of pasted data. In v1.5, PrivateBin introduced the YOURLS server-side proxy. The idea was to allow using the YOURLs URL shortener without running the YOURLs instance without authentication and/or exposing the authentication token to the public, allowing anyone to shorten any URL. With the proxy mechanism, anyone can shorten any URL pointing to the configured PrivateBin instance. The vulnerability allowed other URLs to be shortened, as long as they contain the PrivateBin instance, defeating the limit imposed by the proxy. This vulnerability is fixed in 1.7.4.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.06%
Affected: PrivateBin PrivateBin
Published at:
Updated at:

References

Link Tags
https://github.com/PrivateBin/PrivateBin/security/advisories/GHSA-mqqj-fx8h-437j
https://github.com/PrivateBin/PrivateBin/pull/1370
https://github.com/PrivateBin/PrivateBin/commit/0c4e810e6728f67d678458838d8430dfba4fcca4

Frequently Asked Questions

What is the severity of CVE-2024-39899?
CVE-2024-39899 has been scored as a medium severity vulnerability.
How to fix CVE-2024-39899?
To fix CVE-2024-39899, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-39899 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-39899 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-39899?
CVE-2024-39899 affects PrivateBin PrivateBin.
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