CVE-2024-39899CWE-305CWE-791

PrivateBin allows shortening of URLs for other domains

Medium · published July 9, 2024

CVSS v3.1
5.3
EPSS
1%
Percentile
49.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00627 · 49.4th percentile
Weaknesses
CWE-305 · Authentication Bypass by Primary Weakness; CWE-791 · Incomplete Filtering of Special Elements
Published
2024-07-09T18:57Z
EPSS history
Timeline
  • 09 JUL 18:57Z
    PrivateBin allows shortening of URLs for other domains
    cvelistv5