CVE-2013-5750 — friendsofsymfony/user-bun…
CVE-2013-5750 is a CWE-399 vulnerability in friendsofsymfony/user-bundle. A fix is available for friendsofsymfony/user-bundle — see the affected versions and patch details below.
FriendsOfSymfony FOSUserBundle denial of service via login form
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
friendsofsymfony/user-bundle🐘friendsofsymfony/user-bundleReal-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 login form in the FriendsOfSymfony FOSUserBundle bundle before 1.3.3 for Symfony allows remote attackers to cause a denial of service (CPU consumption) via a long password that triggers an expensive hash computation, as demonstrated by a PBKDF2 computation.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | friendsofsymfony/user-bundle | ≥ 1.2.0&&< 1.2.5 | 1.2.5composer require friendsofsymfony/user-bundle:^1.2.5 |
| 🐘Packagist | friendsofsymfony/user-bundle | ≥ 1.3.0&&< 1.3.3 | 1.3.3composer require friendsofsymfony/user-bundle:^1.3.3 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for friendsofsymfony/user-bundle, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update friendsofsymfony/user-bundle to 1.2.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2013-5750 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-2013-5750 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2013-5750. 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-2013-5750 in your dependencies?
O3 Security finds CVE-2013-5750 across Packagist dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.