Remote code execution in php-heic-to-jpgGHSA-g8v9-c8m3-942v
CRITICALFix: MaestroError/php-heic-to-jpg#34GHSA-g8v9-c8m3-942v is a critical-severity (CVSS 9.8) Code Injection vulnerability in maestroerror/php-heic-to-jpg. A fix is available for maestroerror/php-heic-to-jpg — see the affected versions and patch details below.
Exploitation Status
Proof-of-concept exploit code exists
- CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- A successful exploit gives an attacker total control of the affected component, not partial access.
Exploitation and automatability from CISA’s SSVC triage for GHSA-g8v9-c8m3-942v.
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
maestroerror/php-heic-to-jpgReal-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
php-heic-to-jpg <= 1.0.5 is vulnerable to code injection (fixed in 1.0.6). An attacker who can upload heic images is able to execute code on the remote server via the file name. As a result, the CIA is no longer guaranteed. This affects php-heic-to-jpg 1.0.5 and below.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | maestroerror/php-heic-to-jpg | all versions | 1.0.5composer require maestroerror/php-heic-to-jpg:^1.0.5 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for maestroerror/php-heic-to-jpg, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update maestroerror/php-heic-to-jpg to 1.0.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-g8v9-c8m3-942v is resolved across your whole dependency graph.
Workarounds
Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.
Frequently Asked Questions
Is GHSA-g8v9-c8m3-942v in your dependencies?
Find it across Packagist, including transitive dependencies.