CVE-2024-39899
PrivateBin allows shortening of URLs for other domains
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
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.
Timeline
ID reserved
By GitHub_M
- 7 days later
· 7 days later
Published
- 24 days later
· 24 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| NVDNVD · Deferred | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.63% · top 50% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
Affected products
- affected >= 1.5.0, < 1.7.4
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Packagistprivatebin/privatebinGHSA-mqqj-fx8h-437j (opens in a new tab)
References (3)
- https://github.com/PrivateBin/PrivateBin/security/advisories/GHSA-mqqj-fx8h-437j (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/PrivateBin/PrivateBin/pull/1370 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/PrivateBin/PrivateBin/commit/0c4e810e6728f67d678458838d8430dfba4fcca4 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-mqqj-fx8h-437j (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2024-39899)Record last updated .