CVE-2026-24741
CVE-2026-24741 is a high-severity vulnerability in C4illin Convertx with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: High (CVSS 3.x base score 8.1)
- EPSS exploit prediction: 0% (33rd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-4739
- Weakness: CWE-22
- Affected product: C4illin Convertx
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2026-24741?
- CVE-2026-24741 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
- Is CVE-2026-24741 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-24741?
- CVE-2026-24741 affects C4illin Convertx. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-24741?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-24741 have an EU (EUVD) identifier?
- Yes. CVE-2026-24741 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4739.
- When was CVE-2026-24741 published?
- CVE-2026-24741 was published on 2026-01-27 and last updated on 2026-06-17.
References
- https://github.com/C4illin/ConvertX/commit/7a936bdc0463936463616381ca257b13babc5e77
- https://github.com/C4illin/ConvertX/security/advisories/GHSA-w372-w6cr-45jp
Affected products (1)
- cpe:2.3:a:c4illin:convertx:*:*:*:*:*:*:*:*
More vulnerabilities in C4illin Convertx
- CVE-2025-66449 — High (CVSS 8.8): ConvertXis a self-hosted online file converter. In versions prior to 0.16.0, the endpoint `/upload` allows an…
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