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.

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Solution

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Workaround

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History

Mon, 18 May 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 16 May 2026 15:45:00 +0000

Type Values Removed Values Added
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.
Title Composr CMS 10.0.34 Persistent Cross-Site Scripting via banners
First Time appeared Compo
Compo composr Cms
Weaknesses CWE-79
CPEs cpe:2.3:a:compo:composr_cms:10.0.28:*:*:*:*:*:*:*
cpe:2.3:a:compo:composr_cms:10.0.29:*:*:*:*:*:*:*
cpe:2.3:a:compo:composr_cms:10.0.30:*:*:*:*:*:*:*
cpe:2.3:a:compo:composr_cms:10.0.31:*:*:*:*:*:*:*
cpe:2.3:a:compo:composr_cms:10.0.32:*:*:*:*:*:*:*
cpe:2.3:a:compo:composr_cms:10.0.33:*:*:*:*:*:*:*
cpe:2.3:a:compo:composr_cms:10.0.34:*:*:*:*:*:*:*
Vendors & Products Compo
Compo composr Cms
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': '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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-05-18T19:52:48.880Z

Reserved: 2026-05-15T14:23:29.915Z

Link: CVE-2020-37237

cve-icon Vulnrichment

Updated: 2026-05-18T19:52:44.159Z

cve-icon NVD

Status : Deferred

Published: 2026-05-16T16:16:19.827

Modified: 2026-05-18T17:26:40.167

Link: CVE-2020-37237

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-16T16:30:27Z

Weaknesses