CVE-2021-41236 is a medium-severity (CVSS 4.8) Cross-site Scripting (XSS) vulnerability in oro/platform. O3 Security confirms whether CVE-2021-41236 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
XSS vulnerability on email template preview page
Real-World Exposure
oro/platform🐘oro/platform🐘oro/platformReal-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
OroPlatform is a PHP Business Application Platform. In affected versions the email template preview is vulnerable to XSS payload added to email template content. An attacker must have permission to create or edit an email template. For successful payload, execution the attacked user must preview a vulnerable email template. There are no workarounds that address this vulnerability. Users are advised to upgrade as soon as is possible.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | oro/platform | ≥ 3.1.0&&< 3.1.21 | 3.1.21 |
| 🐘Packagist | oro/platform | ≥ 4.1.0&&< 4.1.14 | 4.1.14 |
| 🐘Packagist | oro/platform | ≥ 4.2.0&&< 4.2.8 | 4.2.8 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for oro/platform. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update oro/platform to 3.1.21 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2021-41236 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 pinpoints whether CVE-2021-41236 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to CVE-2021-41236. 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-2021-41236 in your dependencies?
O3 detects CVE-2021-41236 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.