CVE-2025-67436

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2025-12-23. NVD baseline CVSS 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 6.5Exploit: Elevated riskExposed: 0

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

Authenticated Remote Code Execution (RCE) in PluXml CMS 5.8.22 allows an attacker with administrator panel access to inject a malicious PHP webshell into a theme file (e.g., home.php).

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
45(Track*)
EG Risk 45/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity65% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
1%
EPSS %ILE
47%
KEV
Not listed

Published

December 22, 2025

Last Modified

January 2, 2026

Advisory Details (2)

Auto-updated Aug 9, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

GitHub - pluxml/PluXml: A CMS to create lightweight websites with ease and without database. · GitHub

https://github.com/pluxml/PluXml
generic🟡 PoC Available

GitHub - RajChowdhury240/CVE-2025-67435: A critical Remote Code Execution (RCE) vulnerability has been identified in PluXML CMS version 5.8.22. This vulnerability allows authenticated administrators to execute arbitrary PHP code on the web server by uploading malicious PHP web shells through the theme editor functionality. · GitHub

https://github.com/RajChowdhury240/CVE-2025-67435/

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 26× 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 159 total refreshes for this CVE.

  1. 2026-09-20 20:15 UTCEPSS rescore
  2. 2026-09-18 19:27 UTCEPSS rescore
  3. 2026-09-17 19:30 UTCEPSS rescore
  4. 2026-09-16 14:07 UTCEPSS rescore
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  6. 2026-09-15 03:10 UTCEPSS rescore
  7. 2026-09-14 06:19 UTCOSV refresh
  8. 2026-09-13 16:46 UTCEPSS rescore
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  23. 2026-08-26 07:13 UTCOSV refresh
  24. 2026-08-25 13:48 UTCEPSS rescore
  25. 2026-08-24 14:16 UTCEPSS rescore
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  1. 2026-08-23 00:18 UTCEPSS rescore
  2. 2026-08-21 23:48 UTCEPSS rescore
  3. 2026-08-20 22:55 UTCEPSS rescore
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  14. 2026-08-10 23:59 UTCEPSS rescore
  15. 2026-08-09 23:02 UTCEG score recompute
  16. 2026-08-09 23:02 UTCGHSA enrichment
  17. 2026-08-09 13:46 UTCEPSS rescore
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  19. 2026-08-08 16:36 UTCEPSS rescore
  20. 2026-08-08 05:39 UTCEG score recompute
  21. 2026-08-08 05:39 UTCGHSA enrichment
  22. 2026-08-07 16:26 UTCEPSS rescore
  23. 2026-08-06 13:46 UTCEPSS rescore
  24. 2026-08-06 07:30 UTCEG score recompute
  25. 2026-08-06 07:30 UTCGHSA enrichment
  26. 2026-08-05 19:17 UTCEPSS rescore
  27. 2026-08-05 19:17 UTCEPSS rescore
  28. 2026-08-04 15:09 UTCEPSS rescore
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  42. 2026-07-23 14:18 UTCEPSS rescore
  43. 2026-07-23 14:18 UTCEPSS rescore
  44. 2026-07-23 12:19 UTCOSV refresh
  45. 2026-07-23 03:02 UTCEG score recompute
  46. 2026-07-22 14:08 UTCEPSS rescore
  47. 2026-07-21 15:24 UTCEPSS rescore
  48. 2026-07-20 17:08 UTCEPSS rescore
  49. 2026-07-19 14:30 UTCEPSS rescore
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  51. 2026-07-19 02:28 UTCEPSS rescore
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  54. 2026-07-16 17:02 UTCEPSS rescore
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  63. 2026-07-09 19:09 UTCEPSS rescore
  64. 2026-07-08 15:15 UTCEPSS rescore
  65. 2026-07-07 13:46 UTCEPSS rescore
  66. 2026-07-06 16:27 UTCEPSS rescore
  67. 2026-07-06 16:27 UTCEPSS rescore
  68. 2026-07-06 07:02 UTCOSV refresh
  69. 2026-07-06 02:23 UTCEPSS rescore
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  71. 2026-07-05 02:30 UTCEPSS rescore
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  73. 2026-07-04 06:31 UTCEPSS rescore
  74. 2026-07-04 06:30 UTCEPSS rescore
  75. 2026-07-01 15:06 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2025-67436?
CVE-2025-67436 is a medium vulnerability published on December 22, 2025. Authenticated Remote Code Execution (RCE) in PluXml CMS 5.8.22 allows an attacker with administrator panel access to inject a malicious PHP webshell into a theme file (e.g., home.php).
When was CVE-2025-67436 disclosed?
CVE-2025-67436 was first published in the National Vulnerability Database on December 22, 2025, with the most recent update on January 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-67436 actively exploited?
CVE-2025-67436 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 53.2% of all scored CVEs.
What is the CVSS score of CVE-2025-67436?
CVE-2025-67436 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2025-67436?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-67436, 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.

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