GHSA-3988-h75v-hwf6 — squizlabs/php_codesniffer
GHSA-3988-h75v-hwf6 is a remote code execution vulnerability in squizlabs/php_codesniffer. A fix is available for squizlabs/php_codesniffer — see the affected versions and patch details below.
Arbitrary shell execution
Real-World Exposure
squizlabs/php_codesnifferReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.
Description
A properly crafted filename would allow for arbitrary code execution when using the --filter=gitmodified command line option
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | squizlabs/php_codesniffer | ≥ 3.0.0&&< 3.0.1 | 3.0.1composer require squizlabs/php_codesniffer:^3.0.1 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for squizlabs/php_codesniffer, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update squizlabs/php_codesniffer to 3.0.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-3988-h75v-hwf6 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-3988-h75v-hwf6 can be triaged on real exposure rather than presence alone.
Tailored to GHSA-3988-h75v-hwf6. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-3988-h75v-hwf6 in your dependencies?
O3 Security finds GHSA-3988-h75v-hwf6 across Packagist dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.