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TI-2021-07977 Aliases CVE-2021-25971GHSA-r2w2-h6r8-3r53

Camaleon CMS - SVG File Upload Creates DoS for Media Upload Feature

Priority MEDIUM 53CWE-248Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-248.

Summary

In Camaleon CMS, versions 2.0.1 to 2.6.0 are vulnerable to an Uncaught Exception. The app's media upload feature crashes permanently when an attacker with a low privileged access uploads a specially crafted .svg file

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01008 63rd percentileScored 2026-11-07
Fix Fixed camaleon_cms (RubyGems): 2.6.0.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
owen2345camaleon_cms2.0.1 and later; up to 2.6.0—No fix listedCNA
—camaleon_cms (RubyGems)2.0.1 to before 2.6.0.12.6.0.1Patch availableGHSA-r2w2-h6r8-3r53
  • camaleon_cms Vendorowen2345 Affected 2.0.1 and later; up to 2.6.0 Fixed in — No fix listed CNA
  • camaleon_cms (RubyGems) Vendor— Affected 2.0.1 to before 2.6.0.1 Fixed in 2.6.0.1 Patch available GHSA-r2w2-h6r8-3r53

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:tuzitio:camaleon_cms:*:*:*:*:*:*:*:*2.0.1 – 2.6.0Vulnerableowen2345
  • cpe:2.3:a:tuzitio:camaleon_cms:*:*:*:*:*:*:*:* Versions 2.0.1 – 2.6.0 Vulnerable ·owen2345

Remediation

  • Fix · GHSA-r2w2-h6r8-3r53 camaleon_cms (RubyGems) Fixed in 2.6.0.1 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    camaleon_cms unspecified

    4 records Highest priority Priority HIGH 1 HIGH, 3 MEDIUM

    Other records, highest priority first

    • TI-2021-07976 Camaleon CMS - Insufficient Session Expiration after Password ChangePriority HIGH 73
    • TI-2021-07975 Camaleon CMS - Stored Cross-Site Scripting (XSS) in CommentsPriority MEDIUM 60
    • TI-2021-07978 Camaleon CMS - Server-Side Request Forgery (SSRF) in Media Upload FeaturePriority MEDIUM 56
    Show all 4 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-25971
  2. 2026-10-03 Alias added: GHSA-r2w2-h6r8-3r53

References

Patch 1

Advisory 2

Other 2

  • TI-2023-14148 Camaleon CMS v2.7.0 was discovered to contain a Server-Side Template Injection (SSTI)… CVSS 3.1CRITICAL 9.8
  • TI-2024-31375 Arbitrary file write leading to RCE in Camaleon CMS CVSS 3.1CRITICAL 10.0
  • TI-2021-07976 Camaleon CMS - Insufficient Session Expiration after Password Change CVSS 3.1HIGH 8.8
  • TI-2024-31376 Arbitrary path traversal in Camaleon CMS CVSS 3.1HIGH 7.7
  • TI-2021-07975 Camaleon CMS - Stored Cross-Site Scripting (XSS) in Comments CVSS 3.1MEDIUM 6.1
  • TI-2021-07978 Camaleon CMS - Server-Side Request Forgery (SSRF) in Media Upload Feature CVSS 3.1MEDIUM 4.9
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences