CVE-2026-64838

HIGHPre-NVD 8.38.3—
EchelonGraph scoreHIGH confidence

Score 8.3 from GitHub Security Advisory (severity: HIGH) published 2026-09-10. a secondary CVSS source baseline 8.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
8.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.3Exploit: Elevated riskExposed: 0

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

ICEcoder versions through 8.1 fail to properly validate the oldFileName parameter in file move and rename operations, allowing authenticated users to relocate files from outside the document root. Attackers can use path traversal sequences in oldFileName to move files writable by the PHP process into the web-accessible project directory, disclosing file contents and deleting originals.

CVSS v3
8.3
EG Score
8.3(high)
EG Risk
53(Track*)
EG Risk 53/100SSVC: 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
Severity83% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

September 10, 2026

Last Modified

September 10, 2026

Advisory Details (4)

Auto-updated Sep 10, 2026
No patch confirmed yet.
generic

ICEcoder through 8.1 Path Traversal via oldFileName Parameter | Advisories | VulnCheck

https://www.vulncheck.com/advisories/icecoder-through-8.1-path-traversal-via-oldfilename-parameter
generic

ICEcoder/lib/file-control.php at 4a61847ef7bb0360735cf1d55c45e5de9746e24e · icecoder/ICEcoder · GitHub

https://github.com/icecoder/ICEcoder/blob/4a61847ef7bb0360735cf1d55c45e5de9746e24e/lib/file-control.php#L198
generic

cve-advisories/2026/ICEcoder/CVE-2026-64838.md at main · Caycon/cve-advisories · GitHub

https://github.com/Caycon/cve-advisories/blob/main/2026/ICEcoder/CVE-2026-64838.md
generic

GitHub - icecoder/ICEcoder: Browser code editor awesomeness · GitHub

https://github.com/icecoder/ICEcoder

Vendor Advisories for CVE-2026-64838(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 24× in last 7d / 55× 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.

  1. 2026-09-25 08:52 UTCGHSA enrichment
  2. 2026-09-24 20:26 UTCEG score recompute
  3. 2026-09-24 20:26 UTCGHSA enrichment
  4. 2026-09-24 08:00 UTCGHSA enrichment
  5. 2026-09-23 19:35 UTCEG score recompute
  6. 2026-09-23 19:35 UTCGHSA enrichment
  7. 2026-09-23 17:54 UTCEPSS rescore
  8. 2026-09-23 07:03 UTCGHSA enrichment
  9. 2026-09-22 18:37 UTCEG score recompute
  10. 2026-09-22 18:37 UTCGHSA enrichment
  11. 2026-09-22 06:11 UTCEG score recompute
  12. 2026-09-22 06:11 UTCGHSA enrichment
  13. 2026-09-21 17:46 UTCGHSA enrichment
  14. 2026-09-21 05:18 UTCEG score recompute
  15. 2026-09-21 05:18 UTCGHSA enrichment
  16. 2026-09-20 20:16 UTCEPSS rescore
  17. 2026-09-20 16:50 UTCGHSA enrichment
  18. 2026-09-20 04:24 UTCGHSA enrichment
  19. 2026-09-19 15:58 UTCEG score recompute
  20. 2026-09-19 15:58 UTCGHSA enrichment
  21. 2026-09-19 03:15 UTCEG score recompute
  22. 2026-09-19 03:15 UTCGHSA enrichment
  23. 2026-09-18 19:28 UTCEPSS rescore
  24. 2026-09-18 14:50 UTCGHSA enrichment
  25. 2026-09-18 02:24 UTCEG score recompute
Show 30 more
  1. 2026-09-18 02:24 UTCGHSA enrichment
  2. 2026-09-17 13:58 UTCGHSA enrichment
  3. 2026-09-17 01:32 UTCEG score recompute
  4. 2026-09-17 01:32 UTCGHSA enrichment
  5. 2026-09-16 14:08 UTCEPSS rescore
  6. 2026-09-16 13:06 UTCEG score recompute
  7. 2026-09-16 13:06 UTCGHSA enrichment
  8. 2026-09-16 05:15 UTCEPSS rescore
  9. 2026-09-16 00:41 UTCGHSA enrichment
  10. 2026-09-15 12:00 UTCEG score recompute
  11. 2026-09-15 12:00 UTCGHSA enrichment
  12. 2026-09-14 23:34 UTCGHSA enrichment
  13. 2026-09-14 11:08 UTCGHSA enrichment
  14. 2026-09-13 22:42 UTCEG score recompute
  15. 2026-09-13 22:42 UTCGHSA enrichment
  16. 2026-09-13 10:16 UTCGHSA enrichment
  17. 2026-09-12 21:50 UTCEG score recompute
  18. 2026-09-12 21:50 UTCGHSA enrichment
  19. 2026-09-12 09:23 UTCGHSA enrichment
  20. 2026-09-11 20:55 UTCEG score recompute
  21. 2026-09-11 20:55 UTCGHSA enrichment
  22. 2026-09-11 14:53 UTCEPSS rescore
  23. 2026-09-11 08:29 UTCGHSA enrichment
  24. 2026-09-10 20:03 UTCGHSA enrichment
  25. 2026-09-10 16:21 UTCEG score recompute
  26. 2026-09-10 16:21 UTCGHSA enrichment
  27. 2026-09-10 15:21 UTCEG score recompute
  28. 2026-09-10 14:19 UTCEG score recompute
  29. 2026-09-10 14:00 UTCEG score recompute
  30. 2026-09-10 13:59 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-64838?
CVE-2026-64838 is a high vulnerability published on September 10, 2026. ICEcoder versions through 8.1 fail to properly validate the oldFileName parameter in file move and rename operations, allowing authenticated users to relocate files from outside the document root. Attackers can use path traversal sequences in oldFileName to move files writable by the PHP process…
When was CVE-2026-64838 disclosed?
CVE-2026-64838 was first published in the National Vulnerability Database on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64838 actively exploited?
CVE-2026-64838 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 58.4% of all scored CVEs.
What is the CVSS score of CVE-2026-64838?
CVE-2026-64838 has a CVSS v3 base score of 8.3 (NVD).
How do I remediate CVE-2026-64838?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64838, 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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