CVE-2013-6919 — james-heinrich/phpthumb
Fix: JamesHeinrich/phpThumb@457a37dCVE-2013-6919 is a security vulnerability in james-heinrich/phpthumb. 1 public exploit reference exists, so weaponization risk is real. A fix is available for james-heinrich/phpthumb — see the affected versions and patch details below.
phpThumb is vulnerable to Server-Side Request Forgery (SSRF)
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
Real-World Exposure
james-heinrich/phpthumbReal-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
The default configuration of phpThumb before 1.7.12 has a false value for the disable_debug option, which allows remote attackers to conduct Server-Side Request Forgery (SSRF) attacks via the src parameter.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | james-heinrich/phpthumb | all versions | 1.7.12composer require james-heinrich/phpthumb:^1.7.12 |
Research 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 james-heinrich/phpthumb, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update james-heinrich/phpthumb to 1.7.12 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2013-6919 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 CVE-2013-6919 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2013-6919. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2013-6919 in your dependencies?
O3 Security finds CVE-2013-6919 across Packagist dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.