CVE-2026-86100: CWE-918 Server-Side Request Forgery (SSRF) in owen2345 CamaleonCMS
Description
Camaleon CMS versions 2.7.5 through 2.9.1 contain a server-side request forgery (SSRF) vulnerability in the 'Upload from URL' media feature. The vulnerability arises because the application fails to properly validate redirect targets when fetching remote files, allowing authenticated users to supply URLs that redirect to internal network addresses. This can lead to unauthorized internal network requests initiated by the server.
CVSS v4.0
Score 5.3medium
Affected software
owen2345
CamaleonCMS
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-86100 is a server-side request forgery (SSRF) vulnerability in Camaleon CMS versions 2.7.5 through 2.9.1. The issue occurs in the 'Upload from URL' media feature where the application does not adequately validate redirect targets during remote file fetching. Authenticated attackers can exploit this by providing URLs that initially pass validation but redirect to internal IP addresses or services, enabling SSRF attacks against internal network resources.
Potential Impact
An authenticated attacker can exploit this vulnerability to make the Camaleon CMS server perform unauthorized requests to internal network services. This could potentially expose sensitive internal resources or enable further attacks within the internal network. However, the CVSS score of 5.3 indicates a medium severity impact, reflecting limited privileges required (low attack complexity, no user interaction) and partial impact on confidentiality and integrity.
Mitigation Recommendations
No official patch or fix has been confirmed or provided by the vendor as of the published date. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the 'Upload from URL' feature to trusted users only and monitor for suspicious activity related to URL uploads.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-04T22:51:22.722Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a9b52c3acd9273b496a2270
Added to database: 09/04/2026, 23:22:43 UTC
Last enriched: 09/15/2026, 00:52:08 UTC
Last updated: 10/18/2026, 06:48:20 UTC
Views: 98
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