What is CVE-2020-37237?

CVE-2020-37237 is a medium-severity vulnerability in Compo Composr Cms, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-05-16.

How severe is CVE-2020-37237?

Medium severity. CVSS v3 base score is 6.4 out of 10.

XSS in Compo Composr Cms

CVE-2020-37237

Composr CMS 10.0.34 contains a persistent cross-site scripting vulnerability that allows authenticated administrators to inject malicious scripts through the banner management interface. Attackers with admin credentials can inject XSS payl…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (10.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Compo Composr Cms — versions 10.0.34

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

disclosure@vulncheck.com (exploit)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2020-37237?: CVE-2020-37237 is a medium-severity vulnerability in Compo Composr Cms, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-05-16.
How severe is CVE-2020-37237?: Medium severity. CVSS v3 base score is 6.4 out of 10.