CVE-2023-31703
Published: 17 May 2023
Summary
CVE-2023-31703 is a critical-severity Cross-site Scripting (CWE-79) vulnerability in Escanav Escan Management Console. Its CVSS base score is 9.0 (Critical).
Operationally, ranked in the top 8.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CVE-2023-31703 is a cross-site scripting vulnerability (CWE-79) affecting the edit user form in the Microworld Technologies eScan management console version 14.0.1400.2281. The flaw resides in handling of the from parameter, which fails to sanitize input and permits injection of arbitrary script code. It carries a CVSS 3.1 base score of 9.0, reflecting network attack vector, low attack complexity, low required privileges, and required user interaction with changed scope and high impact on confidentiality, integrity, and availability.
An authenticated attacker with low privileges can supply a crafted from parameter to the edit user form; when a victim user interacts with the resulting page, the injected script executes in the victim's browser context. Successful exploitation allows the attacker to hijack sessions, access or modify sensitive data within the management console, or perform actions on behalf of the victim user.
Public proof-of-concept code demonstrating the issue has been published on Packet Storm and GitHub. The associated EPSS score has remained flat at 0.0856 with no material rise since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-35998
Vulnerability details
Cross Site Scripting (XSS) in the edit user form in Microworld Technologies eScan management console 14.0.1400.2281 allows remote attacker to inject arbitrary code via the from parameter.
- 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.