GHSA-g52p-86j5-xr8q — zendframework/zendframewo…
MEDIUMGHSA-g52p-86j5-xr8q is a medium-severity (CVSS 6.1) vulnerability in zendframework/zendframework1. A fix is available for zendframework/zendframework1 — see the affected versions and patch details below.
ZendFramework Potential Cross-site Scripting in Development Environment Error View Script
Real-World Exposure
zendframework/zendframework1Real-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 error handling view script generated using Zend_Tool failed to escape request parameters when run in the "development" configuration environment, providing a potential XSS attack vector.
Zend_Tool_Project_Context_Zf_ViewScriptFile was patched such that the view script template now calls the escape() method on dumped request variables.
Zend Framework 1.11.4 includes a patch that adds escaping to the generated error/error.phtml view script, ensuring that request variables are escaped appropriately for the browser. Do note, however, that this will not update any previously generated code. You will still need to follow the next advice for previously generated error view scripts.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | zendframework/zendframework1 | ≥ 1.0.0&&< 1.11.4 | 1.11.4composer require zendframework/zendframework1:^1.11.4 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for zendframework/zendframework1, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update zendframework/zendframework1 to 1.11.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-g52p-86j5-xr8q 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-g52p-86j5-xr8q can be triaged on real exposure rather than presence alone.
Tailored to GHSA-g52p-86j5-xr8q. 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-g52p-86j5-xr8q in your dependencies?
O3 Security finds GHSA-g52p-86j5-xr8q across Packagist dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.