What is CVE-2024-39303?

CVE-2024-39303 is a medium-severity vulnerability in Weblate, classified under External Control of File Name or Path. CVSS score: 4.4/10. Published 2024-07-01.

How severe is CVE-2024-39303?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Vulnerability in Weblate

CVE-2024-39303

Weblate is a web based localization tool. Prior to version 5.6.2, Weblate didn't correctly validate filenames when restoring project backup. It may be possible to gain unauthorized access to files on the server using a crafted ZIP file. This issue has been addressed in Weblate 5.6.2. As a workaround, do not allow untrusted users to create projects.

Published 2024-07-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (22.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Weblate
Weblateorg Weblate — versions >= 4.14, < 5.6.2

Weakness classification (CWE)

CWE-73 — External Control of File Name or Path

References

github.com/WeblateOrg/weblate/security/advisories/GHSA-jfgp-674x-6q4p (Patch, Vendor Advisory)
github.com/WeblateOrg/weblate/commit/b6a7eace155fa0feaf01b4ac36165a9c5e63bfdd (Patch)

Frequently asked questions

What is CVE-2024-39303?: CVE-2024-39303 is a medium-severity vulnerability in Weblate, classified under External Control of File Name or Path. CVSS score: 4.4/10. Published 2024-07-01.
How severe is CVE-2024-39303?: Medium severity. CVSS v3 base score is 4.4 out of 10.