CVE-2020-37237

MEDIUM EPSS 14.8%
Published May 16, 20261mo ago · Modified Jun 17, 20262w ago
5.1 CVSS 4.0
Medium
Find Similar
Published May 16, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
5.1
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
14.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

References 4

  • compo.sr https://compo.sr/
  • compo.sr https://compo.sr/download.htm
  • exploit-db.com https://www.exploit-db.com/exploits/49190
  • vulncheck.com https://www.vulncheck.com/advisories/composr-cms-persistent-cross-site-scripting-via-banners

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.