Path Traversal in C4illin Convertx
CVE-2026-24741
ConvertXis a self-hosted online file converter. In versions prior to 0.17.0, the `POST /delete` endpoint uses a user-controlled `filename` value to construct a filesystem path and deletes it via `unlink` without sufficient validation. By supplying path traversal sequences (e.g., `../`), an attacker can delete arbitrary files outside the intended uploads directory, limited only by the permissions of the server process. Version 0.17.0 fixes the issue.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.004 (33.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.
Affected products
- C4illin Convertx — versions < 0.17.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-24741?
- CVE-2026-24741 is a high-severity vulnerability in C4illin Convertx, classified under Path Traversal. CVSS score: 8.1/10. Published 2026-01-27.
- How severe is CVE-2026-24741?
- High severity. CVSS v3 base score is 8.1 out of 10.