CVE-2023-5244
Published: 28 September 2023
Summary
CVE-2023-5244 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Microweber Microweber. Its CVSS base score is 6.1 (Medium).
Operationally, ranked in the top 3.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2023-5244 is a reflected cross-site scripting vulnerability, tracked as CWE-79, that affects the microweber/microweber GitHub repository in versions prior to 2.0. The flaw carries a CVSS 3.1 base score of 6.1 with a vector of AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N, indicating a network-reachable issue that requires no authentication but does need user interaction and produces changed scope.
An unauthenticated remote attacker can supply a crafted URL containing malicious JavaScript that is reflected back to a victim; when the victim follows the link, the script executes in the context of the Microweber application, allowing limited theft or manipulation of data visible to that user session.
Public references point to a specific commit (1cb846f8f54ff6f5c668f3ae64dd81740a7e8968) that resolves the issue, and the associated huntr.dev bounty entry confirms the fix is included in the 2.0 release; administrators should therefore upgrade to version 2.0 or later to eliminate the exposure.
The EPSS score has remained flat at a peak and current value of 0.2893 with no reported real-world exploitation.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-2585
Vulnerability details
Cross-site Scripting (XSS) - Reflected in GitHub repository microweber/microweber prior to 2.0.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.