PatchTheCVECVE-2021-38709: In ocProducts Composr CMS before 10.0.38, an attacker can inject JavaScript via the staff_messaging messaging
CVE-2021-38709 is a medium-severity flaw (CVSS 6.1) affecting composr cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
In ocProducts Composr CMS before 10.0.38, an attacker can inject JavaScript via the staff_messaging messaging system for XSS.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 6.1 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 0.6% (top 52%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2021-08-16 |
| 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-2021-38709?
composr cms: upgrade to 10.0.38. Exact commands for each OS are on this page.
Is CVE-2021-38709 being exploited?
CVE-2021-38709 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-2021-38709 affect?
CVE-2021-38709 affects composr cms. Severity is medium (CVSS 6.1). In ocProducts Composr CMS before 10.0.38, an attacker can inject JavaScript via the staff_messaging messaging system for XSS.
How urgent is CVE-2021-38709?
Priority 33/100. No elevated risk signals yet.
Related CVEs
- CVE-2021-38708 MEDIUM 5.4 UPGRADE In ocProducts Composr CMS before 10.0.38, an attacker can inject JavaScript via Comcode for XSS.