CVE-2023-5244 is a medium-severity (CVSS 5) Cross-site Scripting (XSS) vulnerability in microweber/microweber. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.
Cross-site Scripting (XSS) - Reflected in microweber/microweber
Exploitation Status
Proof-of-concept exploit code exists
- CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
Exploitation and automatability from CISA’s SSVC triage for CVE-2023-5244.
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
microweber/microweberReal-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
Cross-site Scripting (XSS) - Reflected in GitHub repository microweber/microweber 1.3.4 and prior. A patch is available and anticipated to be part of the 2.x branch.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | microweber/microweber | all versions | No fix |
Affected Products
microwebermicroweberDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for microweber/microweber, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Remediation status
The records we use list no patched version of microweber/microweber for CVE-2023-5244. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.
Mitigate without a patch
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.
How to detect CVE-2023-5244
A community-maintained Nuclei template exists for this CVE. You can scan for it directly:
nuclei -id cve-2023-5244 -u https://target- Template
- Microweber < V.2.0 - Cross-Site Scripting
- Severity
- medium
- Impact
- Unauthenticated attackers can inject malicious JavaScript via reflected XSS in the types parameter, potentially stealing user session cookies or performing actions on behalf of users.
- Remediation
- Update Microweber to version 2.0 or later.
Template by ProjectDiscovery nuclei-templates (r3Y3r53), MIT licensed. View the full template. Scan only systems you are authorised to test.
Frequently Asked Questions
Is CVE-2023-5244 in your dependencies?
Find it across Packagist, including transitive dependencies.