Path Traversal in Unjs Ipx
CVE-2025-54387
IPX is an image optimizer powered by sharp and svgo. In versions 1.3.1 and below, 2.0.0-0 through 2.1.0, and 3.0.0 through 3.1.0, the approach used to check whether a path is within allowed directories is vulnerable to path prefix bypass when the allowed directories do not end with a path separator. This occurs because the check relies on a raw string prefix comparison. This is fixed in versions 1.3.2, 2.1.1 and 3.1.1.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (50.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Unjs Ipx — versions < 1.3.2, >= 2.0.0-0, < 2.1.1, >= 3.0.0, < 3.1.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/unjs/ipx/security/advisories/GHSA-mm3p-j368-7jcr (Exploit, Vendor Advisory)
- github.com/unjs/ipx/commit/81693ddbfc062cc922e4e2406e8427ab4e3ad214 (Patch)
- github.com/unjs/ipx/releases/tag/v1.3.2 (Release Notes)
- github.com/unjs/ipx/releases/tag/v2.1.1 (Release Notes)
- github.com/unjs/ipx/releases/tag/v3.1.1 (Release Notes)
Frequently asked questions
- What is CVE-2025-54387?
- CVE-2025-54387 is a critical-severity vulnerability in Unjs Ipx, classified under Path Traversal. CVSS score: 9.8/10. Published 2025-08-05.
- How severe is CVE-2025-54387?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2025-54387 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.