pwn.college has Symlink LFI in Dojo repos

published 2025-01-30 last yr. modified 2026-06-17 4mo ago also EUVD-2025-3973

cvss: 7.7; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits: 0; none known

pwn.college is an education platform to learn about, and practice, core cybersecurity concepts in a hands-on fashion. Incorrect symlink checks on user specified dojos allows for users (admin not required) to perform an LFI from the CTFd container. When a user clones or updates repositories, a check is performed to see if the repository had contained any symlinks. A malicious user could craft a repository with symlinks pointed to sensitive files and then retrieve them using the CTFd website.

Is CVE-2025-24886 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: last yr. (2025-01-31)

Exploit prediction

0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.7	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Affected products

pwncollege dojo

Classification

Weakness

CWE-61 UNIX Symbolic Link (Symlink) Following
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

github.com /pwncollege/dojo/security/advisories/GHSA-fcq8-jqq5-9xmh

Sources

CVE List CVE-2025-24886
NVD CVE-2025-24886

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.