CVE-2026-44258

CRITICALNVD 9.39.3—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.3 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 79% 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
9.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.3Exploit: NoneExposed: 0

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

efw4.X is an Enterprise Framework for Web. Prior to 4.08.010, the elfinder_checkRisk function validates target and targets for path traversal and home containment, but does not validate the dst (destination) parameter used by elfinder_paste. An attacker can copy or move files from within the home directory to any arbitrary destination by setting dst to a base64-encoded traversal path. This bypasses the protected=true security control. This vulnerability is fixed in 4.08.010.

CVSS v3
9.3
EG Score
9.3(medium)
EPSS
20.9%
KEV
Not listed

Published

May 12, 2026

Last Modified

May 14, 2026

Advisory Details (1)

Auto-updated May 12, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Path Traversal via Unchecked dst Parameter leads to Remote Code Execution · Advisory · efwGrp/efw4.X · GitHub

https://github.com/efwGrp/efw4.X/security/advisories/GHSA-9g5w-qw96-jr3x

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 46× 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 176 total refreshes for this CVE.

  1. 2026-07-16 14:19 UTCOSV refresh
  2. 2026-07-15 16:57 UTCEPSS rescore
  3. 2026-07-15 02:00 UTCEPSS rescore
  4. 2026-07-13 22:30 UTCEPSS rescore
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  18. 2026-06-28 12:55 UTCEG score recompute
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  20. 2026-06-28 04:56 UTCEPSS rescore
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  22. 2026-06-27 23:57 UTCEG score recompute
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  24. 2026-06-27 08:16 UTCEG score recompute
  25. 2026-06-27 03:08 UTCEPSS rescore
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  1. 2026-06-26 20:40 UTCEG score recompute
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  4. 2026-06-25 13:49 UTCEPSS rescore
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  10. 2026-06-21 14:56 UTCEPSS rescore
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  21. 2026-06-16 17:52 UTCEPSS rescore
  22. 2026-06-16 11:32 UTCEG score recompute
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  24. 2026-06-16 03:52 UTCEG score recompute
  25. 2026-06-15 17:49 UTCEPSS rescore
  26. 2026-06-15 05:28 UTCEG score recompute
  27. 2026-06-15 01:48 UTCEG score recompute
  28. 2026-06-14 22:08 UTCEG score recompute
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  36. 2026-06-13 08:43 UTCEG score recompute
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  39. 2026-06-12 23:12 UTCEPSS rescore
  40. 2026-06-12 23:12 UTCEPSS rescore
  41. 2026-06-12 20:24 UTCEG score recompute
  42. 2026-06-12 16:44 UTCEG score recompute
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  44. 2026-06-12 09:04 UTCEG score recompute
  45. 2026-06-12 05:23 UTCEG score recompute
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  47. 2026-06-11 22:02 UTCEG score recompute
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  49. 2026-06-11 14:33 UTCEG score recompute
  50. 2026-06-11 14:00 UTCEPSS rescore
  51. 2026-06-11 10:53 UTCEG score recompute
  52. 2026-06-11 07:12 UTCEG score recompute
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  54. 2026-06-10 23:50 UTCEG score recompute
  55. 2026-06-10 22:18 UTCEPSS rescore
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  60. 2026-06-10 12:50 UTCEG score recompute
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  62. 2026-06-10 05:30 UTCEG score recompute
  63. 2026-06-10 01:50 UTCEG score recompute
  64. 2026-06-09 22:10 UTCEG score recompute
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  66. 2026-06-09 14:28 UTCEG score recompute
  67. 2026-06-09 10:48 UTCEG score recompute
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  70. 2026-06-08 23:46 UTCEG score recompute
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  73. 2026-06-08 14:17 UTCEPSS rescore
  74. 2026-06-08 14:17 UTCEPSS rescore
  75. 2026-06-08 10:50 UTCEG score recompute

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Frequently asked(5)

What is CVE-2026-44258?
CVE-2026-44258 is a critical vulnerability published on May 12, 2026. efw4.X is an Enterprise Framework for Web. Prior to 4.08.010, the elfindercheckRisk function validates target and targets for path traversal and home containment, but does not validate the dst (destination) parameter used by elfinderpaste. An attacker can copy or move files from within the home…
When was CVE-2026-44258 disclosed?
CVE-2026-44258 was first published in the National Vulnerability Database on May 12, 2026, with the most recent update on May 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-44258 actively exploited?
CVE-2026-44258 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-44258?
CVE-2026-44258 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2026-44258?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-44258, 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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