Cyber Resilience

CVE-2021-39332

Medium

Published: 15 October 2021

Published
15 October 2021
Modified
20 January 2026
KEV Added
Patch
CVSS Score v3.1 5.5 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
EPSS Score 0.0042 62.5th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-39332 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Bzmngr Business Manager. Its CVSS base score is 5.5 (Medium).

Operationally, ranked in the top 37.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

The Business Manager WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization found throughout the plugin which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including…

more

1.4.5. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.

CWE(s)

Related Threats

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

Affected Assets

bzmngr
business manager
≤ 1.4.5

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