Cyber Resilience

CVE-2021-42535

Medium

Published: 27 July 2022

Published
27 July 2022
Modified
17 April 2025
KEV Added
Patch
CVSS Score v3.1 5.3 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS Score 0.0017 38.6th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-42535 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Visam Vbase Web-Remote. Its CVSS base score is 5.3 (Medium).

Operationally, ranked at the 38.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

VISAM VBASE version 11.6.0.6 does not neutralize or incorrectly neutralizes user-controllable input before the data is placed in output used as a public-facing webpage.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

visam
vbase web-remote
11.6.0.6

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.

addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

References