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Camaleon Cms CVE-2021-25972

MEDIUM
Server-Side Request Forgery (SSRF) (CWE-918)
2021-10-20 vulnerabilitylab@mend.io
4.9
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V4 - API and Web Service URL allowlisting, SSRF prevention
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Credential Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 4.9 (MEDIUM). Attack characteristics: network attack vector, low complexity, high privileges required, no user interaction not required.

Exploit ScenarioDerived

A remote attacker could make the server perform requests to unintended internal or external resources by sending crafted requests to the affected application.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 1.0% exploitation probability (EPSS)

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AnalysisAI

In Camaleon CMS, versions 2.1.2.0 to 2.6.0, are vulnerable to Server-Side Request Forgery (SSRF) in the media upload feature, which allows admin users to fetch media files from external URLs but. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Validate and allowlist destination URLs, block requests to internal networks, use network segmentation.

Affected Packages

rubygems camaleon_cms fix: 2.6.0.1

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in rubygems

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Server-Side Request Forgery (SSRF) (CWE-918), which allows attackers to make the server perform requests to unintended internal or external resources. In Camaleon CMS, versions 2.1.2.0 to 2.6.0, are vulnerable to Server-Side Request Forgery (SSRF) in the media upload feature, which allows admin users to fetch media files from external URLs but fails to validate URLs referencing to localhost or other internal servers. This allows attackers to read files stored in the internal server. Affected products include: Tuzitio Camaleon Cms.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 4.9 MEDIUM
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionNVD

In Camaleon CMS, versions 2.1.2.0 to 2.6.0, are vulnerable to Server-Side Request Forgery (SSRF) in the media upload feature, which allows admin users to fetch media files from external URLs but fails to validate URLs referencing to localhost or other internal servers. This allows attackers to read files stored in the internal server.

Threat Intelligence Overview

EPSS Score
1.0%
Top 43% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 1.0%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

25
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +24
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Server-Side Request Forgery exploits applications that fetch remote resources based on user-supplied URLs.

Affected Products (CPE)NVD

cpe:2.3:a:tuzitio:camaleon_cms:*:*:*:*:*:*:*:*
CVE-2024-46986 CRITICAL POC
9.9 Sep 18

Camaleon CMS is a dynamic and advanced content management system based on Ruby on Rails. Rated critical severity (CVSS 9

CVE-2023-30145 CRITICAL POC
9.8 May 26

Camaleon CMS v2.7.0 was discovered to contain a Server-Side Template Injection (SSTI) vulnerability via the formats para

CVE-2026-66748 HIGH POC
8.7 Jul 28

Authenticated remote code execution in Camaleon CMS 2.1.1 through 2.9.1 lets users who hold the custom_fields manage per

CVE-2024-46987 HIGH POC
7.7 Sep 18

Camaleon CMS is a dynamic and advanced content management system based on Ruby on Rails. Rated high severity (CVSS 7.7),

CVE-2024-48652 MEDIUM POC
4.8 Oct 22

Cross Site Scripting vulnerability in camaleon-cms v.2.7.5 allows remote attacker to execute arbitrary code via the cont

CVE-2021-25970 HIGH
8.8 Oct 20

Camaleon CMS 0.1.7 to 2.6.0 doesn’t terminate the active session of the users, even after the admin changes the user’s p

CVE-2026-116009 HIGH
8.7 Oct 24

Camaleon CMS releases before 2.9.3 let an authenticated user who holds only the 'media' permission escape the site's tem

CVE-2026-120429 HIGH
7.1 Nov 02

Camaleon CMS releases before 2.9.2 enforce only authentication, not authorization, on the Admin::MediaController endpoin

CVE-2021-25969 MEDIUM
6.1 Oct 20

In Camaleon CMS application, versions 0.0.1 to 2.6.0 are vulnerable to stored XSS, that allows an unauthenticated attack

CVE-2018-18260 MEDIUM
6.1 Oct 15

In the 2.4 version of Camaleon CMS, Stored XSS has been discovered. Rated medium severity (CVSS 6.1), this vulnerability

CVE-2026-1776 MEDIUM
6.0 Mar 10

Camaleon CMS versions 2.4.5.0 through 2.9.0, prior to commit f54a77e, contain a path traversal vulnerability in the AWS

CVE-2026-67616 MEDIUM
5.3 Aug 03

Draft post creation in Camaleon CMS through 2.9.2 allows any authenticated low-privileged user to create and overwrite d

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