CVE-2022-0378
Published: 26 January 2022
Summary
CVE-2022-0378 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Microweber Microweber. Its CVSS base score is 5.4 (Medium).
Operationally, ranked in the top 8.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
The vulnerability CVE-2022-0378 is a reflected cross-site scripting flaw (CWE-79) in the microweber/microweber package distributed via Packagist, affecting all versions prior to 1.2.11. It received a CVSS 3.1 score of 5.4 reflecting network attack vector, low complexity, no required privileges, and required user interaction.
An unauthenticated remote attacker can supply a crafted request containing malicious script that is reflected back to a victim user; successful exploitation allows limited reading and modification of data within the user's browser context but does not impact availability.
Public references point to a fix merged in commit fc7e1a026735b93f0e0047700d08c44954fce9ce that updates input handling to prevent the reflection. The associated huntr.dev bounty report documents the same remediation path.
EPSS remains flat at 0.0740 with no material rise after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-0433
Vulnerability details
Cross-site Scripting (XSS) - Reflected in Packagist microweber/microweber prior to 1.2.11.
- 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.