CVE-2025-2304

CRITICALNVD 9.49.4—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.4 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 57% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.4
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.4Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A Privilege Escalation through a Mass Assignment exists in Camaleon CMS

When a user wishes to change his password, the 'updated_ajax' method of the UsersController is called. The vulnerability stems from the use of the dangerous permit! method, which allows all parameters to pass through without any filtering.

CVSS v3
9.4
EG Score
9.4(medium)
EPSS
44.1%
KEV
Not listed

Published

March 14, 2025

Last Modified

April 15, 2026

Advisory Details (2)

Auto-updated Jul 16, 2026
No patch confirmed yet.
generic

Camaleon CMS Privilege Escalation - Research Advisory | Tenable®

https://www.tenable.com/security/research/tra-2025-09
generic

GitHub - owen2345/camaleon-cms: Camaleon CMS is a dynamic and advanced content management system based on Ruby on Rails · GitHub

https://github.com/owen2345/camaleon-cms

Affected Packages

(1 across 1 ecosystem)
RubyGems(1)
PackageVulnerable rangeFixed inDependents
camaleon_cms0.0.1 ... 2.9.0 (116 versions)2.9.1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 47× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 124 total refreshes for this CVE.

  1. 2026-07-22 14:07 UTCEPSS rescore
  2. 2026-07-22 14:07 UTCEPSS rescore
  3. 2026-07-21 15:24 UTCEPSS rescore
  4. 2026-07-21 15:24 UTCEPSS rescore
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  6. 2026-07-19 14:30 UTCEPSS rescore
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  12. 2026-07-16 17:02 UTCEPSS rescore
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  15. 2026-07-15 01:59 UTCEPSS rescore
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  17. 2026-07-13 22:29 UTCEPSS rescore
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  24. 2026-07-09 19:09 UTCEPSS rescore
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  1. 2026-07-07 13:45 UTCEPSS rescore
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  7. 2026-07-02 17:01 UTCEPSS rescore
  8. 2026-07-01 15:06 UTCEPSS rescore
  9. 2026-06-30 23:22 UTCEPSS rescore
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  11. 2026-06-29 14:06 UTCEPSS rescore
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  21. 2026-06-23 21:32 UTCEPSS rescore
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  23. 2026-06-22 14:25 UTCEPSS rescore
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  25. 2026-06-21 14:56 UTCEPSS rescore
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  27. 2026-06-21 01:59 UTCEPSS rescore
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  29. 2026-06-19 19:25 UTCEPSS rescore
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  31. 2026-06-18 17:52 UTCEPSS rescore
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  40. 2026-06-12 23:11 UTCEPSS rescore
  41. 2026-06-11 13:59 UTCEPSS rescore
  42. 2026-06-10 22:18 UTCEPSS rescore
  43. 2026-06-10 13:22 UTCEPSS rescore
  44. 2026-06-08 16:25 UTCEG score recompute▲ 9.40
  45. 2026-06-08 14:16 UTCEPSS rescore
  46. 2026-06-08 14:16 UTCEPSS rescore
  47. 2026-06-07 15:24 UTCEPSS rescore
  48. 2026-06-07 15:24 UTCEPSS rescore
  49. 2026-06-06 13:47 UTCEPSS rescore
  50. 2026-06-06 13:47 UTCEPSS rescore
  51. 2026-06-05 22:46 UTCEPSS rescore
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  53. 2026-06-05 06:10 UTCEPSS rescore
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  55. 2026-06-04 13:12 UTCEPSS rescore
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  57. 2026-06-02 20:12 UTCEPSS rescore
  58. 2026-06-01 13:51 UTCEPSS rescore
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  60. 2026-05-31 22:30 UTCEPSS rescore
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  62. 2026-05-31 00:16 UTCEPSS rescore
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  64. 2026-05-29 13:44 UTCEPSS rescore
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  69. 2026-05-27 13:40 UTCEPSS rescore
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  74. 2026-05-26 13:43 UTCEPSS rescore
  75. 2026-05-26 13:43 UTCEPSS rescore

Publicly available exploits

(6 references)

Working exploit code is in the public domain (6 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCestebanzarate/CVE-2025-2304-Camaleon-CMS-Mass-Assignment-Privilege-Escalation-PoC
    First seen Feb 20, 2026

    Privilege escalation vulnerability in Camaleon CMS < 2.9.1.

    Open source ↗
  • GitHub PoCCsuriBird/CVE-2025-2304
    First seen Feb 6, 2026

    This Python script exploits a critical mass assignment vulnerability in Camaleon CMS version 2.9.0, allowing any registered user to escalate their privileges to administrator.

    Open source ↗
  • GitHub PoCAlien0ne/CVE-2025-2304
    First seen Feb 4, 2026

    Authenticated privilege escalation in Camaleon CMS v2.9.0 via improper parameter handling in the updated_ajax endpoint.

    Open source ↗
  • GitHub PoCpredyy/CVE-2025-2304
    First seen Feb 1, 2026

    Python script to exploit Privilege Escalation in Camaleon CMS.

    Open source ↗
  • GitHub PoCwhiteov3rflow/CVE-2025-2304-POC
    First seen Jan 31, 2026

    CVE-2025-2304 POC

    Open source ↗
  • GitHub PoCd3vn0mi/CVE-2025-2304-POC
    First seen Jan 31, 2026
    Open source ↗

Frequently asked(5)

What is CVE-2025-2304?
CVE-2025-2304 is a critical vulnerability published on March 14, 2025. A Privilege Escalation through a Mass Assignment exists in Camaleon CMS When a user wishes to change his password, the 'updated_ajax' method of the UsersController is called. The vulnerability stems from the use of the dangerous permit! method, which allows all parameters to pass through without…
When was CVE-2025-2304 disclosed?
CVE-2025-2304 was first published in the National Vulnerability Database on March 14, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-2304 actively exploited?
CVE-2025-2304 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 44.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-2304?
CVE-2025-2304 has a CVSS v3 base score of 9.4 (NVD).
How do I remediate CVE-2025-2304?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-2304, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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