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CVE-2025-54387

30
FAUCET Score

CVE-2025-54387 is a critical path prefix bypass vulnerability affecting unjs ipx, an image optimizer. The flaw, present in versions 1.3.1 and below, 2.0.0-0 through 2.1.0, and 3.0.0 through 3.1.0, allows attackers to bypass directory restrictions due to an improper string comparison when allowed directories lack a trailing path separator. With a CVSS score of 9.8 (CRITICAL), this vulnerability is easily exploitable over the network with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion regarding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.3.2CPE matchmatch criteria
cpe:2.3:a:unjs:ipx:*:*:*:*:*:node.js:*:*
>= 2.0.0, < 2.1.1CPE matchmatch criteria
cpe:2.3:a:unjs:ipx:*:*:*:*:*:node.js:*:*
>= 3.0.0, < 3.1.1CPE matchmatch criteria
cpe:2.3:a:unjs:ipx:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 4.0

6.9MEDIUM

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
LOW
VS Integrity
NONE
VS Availability
NONE
SS Confidentiality
HIGH
SS Integrity
LOW
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.67%
Probability of exploitation in next 30 days
EPSS Percentile
48.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0067 is in the 30th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: ipxFixed in: 1.3.2
npmpatch availablevia ghsa
Product: ipxFixed in: 2.1.1
npmpatch availablevia ghsa
Product: ipxFixed in: 3.1.1

Vendor Advisories (1)

npmGHSA-mm3p-j368-7jcrmedium

IPX Allows Path Traversal via Prefix Matching Bypass

Aug 4, 2025

References

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
github.com / unjs/ipx/security/advisories/GHSA-mm3p-j368-7jcr
ExploitVendor Advisory