CVE-2024-39899
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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 5.3
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- EPSS probability
- 0.63%
- CWE
- CWE-305, CWE-791
- Published
- 2024-07-09
- Last modified
- 2026-03-13
Affected products
- PrivateBin PrivateBin
Weakness type
Related vulnerabilities
- CVE-2026-86207 — Authentication bypass leads to unauthorised access to N-central
- CVE-2026-81578 — PaperCut MF/NG: Authentication Bypass
- CVE-2026-16895 — Authentication Bypass in Metasploit JSON-RPC Service When DB Health Check Fails
- CVE-2026-78619 — Punk::Plugin::TOTP versions before 0.05 for Perl accept another account's recovery code at the two-factor challenge because totp_use_recovery compares user identifiers numerically
- CVE-2026-53561 — Apache Hive: Unauthenticated authentication bypass in HiveServer2 HTTP SAML bearer-token validation allows impersonation of any Hive user
- CVE-2025-14600 — Admin Account Takeover via Path Traversal in vsDesk
- CVE-2026-19349 — Lemonldap::NG::Portal versions from 2.0.0 before 2.16.9, from 2.17.0 before 2.21.5, from 2.22.0 before 2.23.3 for Perl allow authentication bypass via an OAuth2 state parameter stored as an SSO session in the GitHub and LinkedIn backends
- CVE-2026-1621 — Register Bypass in Universal Sotware's E-Municipality