PatchTheCVECVE-2021-39332: The Business Manager WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input v
CVE-2021-39332 is a medium-severity flaw (CVSS 5.5) affecting business manager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.5 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | High |
| User interaction | None |
| EPSS exploit chance | 0.5% (top 56%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2021-10-15 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2021-39332?
business manager: upgrade to newer than 1.4.5. Exact commands for each OS are on this page.
Is CVE-2021-39332 being exploited?
CVE-2021-39332 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2021-39332 affect?
CVE-2021-39332 affects business manager. Severity is medium (CVSS 5.5). 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
How urgent is CVE-2021-39332?
Priority 30/100. No elevated risk signals yet.