Read the docs
TI-2024-26793 Aliases CVE-2024-39899GHSA-mqqj-fx8h-437j

PrivateBin allows shortening of URLs for other domains

Priority LOW 31CWE-305Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00627 50th percentileScored 2026-11-07
Fix Fixed PrivateBin (PrivateBin): 1.7.4privatebin/privatebin (Packagist): 1.7.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
PrivateBinPrivateBin1.5.0 to before 1.7.41.7.4Patch availableCNA
—privatebin/privatebin (Packagist)1.5.0 to before 1.7.41.7.4Patch availableGHSA-mqqj-fx8h-437j
  • PrivateBin VendorPrivateBin Affected 1.5.0 to before 1.7.4 Fixed in 1.7.4 Patch available CNA
  • privatebin/privatebin (Packagist) Vendor— Affected 1.5.0 to before 1.7.4 Fixed in 1.7.4 Patch available GHSA-mqqj-fx8h-437j

CPE names CISA-ADP · 1

CPEVersionsRoleVendor
cpe:2.3:a:privatebin:privatebin:1.5.0:*:*:*:*:*:*:*1.5.0—PrivateBin
  • cpe:2.3:a:privatebin:privatebin:1.5.0:*:*:*:*:*:*:* Versions 1.5.0 — ·PrivateBin

Remediation

  • Fix · CNA PrivateBin (PrivateBin) Fixed in 1.7.4
  • Fix · GHSA-mqqj-fx8h-437j privatebin/privatebin (Packagist) Fixed in 1.7.4 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-39899
  2. 2026-10-03 Alias added: GHSA-mqqj-fx8h-437j
  3. 2026-10-30 EPSS moved to the 50th–90th percentile

References

Advisory 1

Other 4

  • TI-2022-08646 Persistent Cross-site Scripting (XSS) vulnerability in PrivateBin CVSS 3.1HIGH 8.2
  • TI-2025-38979 PrivateBin persistent HTML injection in attachment filename enables redirect and defacement CVSS 3.1MEDIUM 5.8
  • TI-2025-40057 PrivateBin vulnerable to malicious filename use for self-XSS / HTML injection locally for users CVSS 3.1MEDIUM 5.4
  • TI-2026-40342 PrivateBin: Reflected JSON injection in backend responses via unescaped REQUEST_URI CVSS 3.1N/A 0.0
  • TI-2025-40060 PrivateBin's template-switching feature allows arbitrary local file inclusion through path traversal CVSS 3.1MEDIUM 5.8
  • TI-2020-04279 Persistent XSS vulnerability in filename of attached file in PrivateBin CVSS 3.1MEDIUM 6.1
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences