CVE-2023-38695 is a medium-severity (CVSS 6.5) Path Traversal vulnerability in @simonsmith/cypress-image-snapshot. 2 public exploit or proof-of-concept references are indexed, so weaponization risk is real. A fix is available for @simonsmith/cypress-image-snapshot — see the affected versions and patch details below.
cypress-image-snapshot vulnerable to insecure snapshot file names
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2023-38695.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.
@simonsmith/cypress-image-snapshotnpmDescription
Impact
It's possible for a user to pass a relative file path for the snapshot name and reach outside of the project directory into the machine running the test. Example:
cy.get('h1').matchImageSnapshot('../../../ignore-relative-dirs')
The above will create an ignore-relative-dirs.png three levels up
Patches
Fixed in 8.0.2
Workarounds
Validate all the existing uses of matchImageSnapshot to ensure correct use of the filename argument. Example:
// snapshot name will be the test title
cy.matchImageSnapshot();
// snapshot name will be the name passed in
cy.matchImageSnapshot('login');
References
https://github.com/simonsmith/cypress-image-snapshot/issues/15
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | @simonsmith/cypress-image-snapshot | all versions | 8.0.2npm install @simonsmith/cypress-image-snapshot@8.0.2 |
Affected Products
cypress image snapshotsimonsmithResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for @simonsmith/cypress-image-snapshot, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update @simonsmith/cypress-image-snapshot to 8.0.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-38695 is resolved across your whole dependency graph.
Workarounds
Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.
Frequently Asked Questions
Is CVE-2023-38695 in your dependencies?
Find it across npm, including transitive dependencies.