CVE-2020-37237
Composr CMS 10.0.34 Persistent Cross-Site Scripting via banners
- State
- Published
- Severity
- 5.1 Medium
- Published
- May 16, 2026
- Updated
- May 24, 2026
- Reserved
- May 15, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.1 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N | VulnCheck |
| 3.1 | 6.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N | VulnCheck |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
Composr CMSCompo |
|
References
- ExploitDB-49190exploit
- Official Product Homepageproduct
- Product Referenceproduct
- VulnCheck Advisory: Composr CMS 10.0.34 Persistent Cross-Site Scripting via bannersthird-party-advisory
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