XSS in Business Manager
CVE-2021-39332
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 1.4.5. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.005 (42.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N.
Affected products
- Business Manager — versions 1.4.5
- Bzmngr Business_manager
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@wordfence.com (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-39332?
- CVE-2021-39332 is a medium-severity vulnerability in Business Manager, classified under Cross-site Scripting. CVSS score: 5.5/10. Published 2021-10-15.
- How severe is CVE-2021-39332?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2021-39332 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.