CVE-2020-37237
Medium
Description
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 payloads in the Description field of the Add banner functionality, which execute for all website visitors when they access the home page.
SeverityMedium
CVSS6.4
Exploit probability—
ProductComposr CMS
PublishedMay 16, 2026
First seenMay 16, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Compo Composr CMS | 10.0.34 | — |
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