GHSA-8qv8-fq5w-p966 is a medium-severity (CVSS 6.3) CWE-93 vulnerability in phpservermon/phpservermon. 1 public exploit reference exists, so weaponization risk is real. No vendor fix is recorded yet; mitigation options are listed below.
phpservermon is vulnerable to CRLF Injection
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
GHSA-8qv8-fq5w-p966 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.
Where this sits among everything scored
Of 379,842 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.
Real-World Exposure
phpservermon/phpservermonReal-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
phpservermon is vulnerable to Improper Neutralization of CRLF Sequences.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | phpservermon/phpservermon | all versions | No fix |
Affected Products
php server monitorphpservermonitorResearch 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 phpservermon/phpservermon, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Remediation status
No patched version of phpservermon/phpservermon has shipped for GHSA-8qv8-fq5w-p966 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.
Mitigate without a patch
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.
Frequently Asked Questions
Is GHSA-8qv8-fq5w-p966 in your dependencies?
Find it across Packagist, including transitive dependencies.