CVE-2020-15885 is a medium-severity (CVSS 5.4) Cross-site Scripting (XSS) vulnerability in munkireport/comment. A fix is available for munkireport/comment — see the affected versions and patch details below.
MunkiReport Cross-Site Scripting (XSS) Filter Bypass On Comment
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
munkireport/commentReal-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
A Cross-Site Scripting (XSS) vulnerability in the comment module before 4.0 for MunkiReport allows remote attackers to inject arbitrary web script or HTML by posting a new comment.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | munkireport/comment | all versions | 4.0composer require munkireport/comment:^4.0 |
Affected Products
commentmunkireport_projectDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for munkireport/comment, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update munkireport/comment to 4.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-15885 is resolved across your whole dependency graph.
Workarounds
Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.
Frequently Asked Questions
Is CVE-2020-15885 in your dependencies?
Find it across Packagist, including transitive dependencies.