GHSA-vvm3-rv48-j3g5 — zendframework/zendframewo…
MEDIUMGHSA-vvm3-rv48-j3g5 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 XSS or HTML Injection vector in Zend_Json
Real-World Exposure
zendframework/zendframework1🐘zendframework/zendframework1🐘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
Zend_Json_Encoder was not taking into account the solidus character (/) during encoding, leading to incompatibilities with the JSON specification, and opening the potential for XSS or HTML injection attacks when returning HTML within a JSON string.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | zendframework/zendframework1 | ≥ 1.7.0&&< 1.7.9 | 1.7.9composer require zendframework/zendframework1:^1.7.9 |
| 🐘Packagist | zendframework/zendframework1 | ≥ 1.8.0&&< 1.8.5 | 1.8.5composer require zendframework/zendframework1:^1.8.5 |
| 🐘Packagist | zendframework/zendframework1 | ≥ 1.9.0&&< 1.9.7 | 1.9.7composer require zendframework/zendframework1:^1.9.7 |
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 1.7.9 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-vvm3-rv48-j3g5 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-vvm3-rv48-j3g5 can be triaged on real exposure rather than presence alone.
Tailored to GHSA-vvm3-rv48-j3g5. 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-vvm3-rv48-j3g5 in your dependencies?
O3 Security finds GHSA-vvm3-rv48-j3g5 across Packagist dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.