CVE-2026-100715

CRITICALPre-NVD 9.69.6—
EchelonGraph scoreHIGH confidence

Score 9.6 from GitHub Security Advisory (severity: HIGH) published 2026-09-26. A secondary CVSS source baseline 9.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
9.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 9.6Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Froxlor through 2.3.10 is vulnerable to arbitrary file deletion via symlink following in the FTP data deletion cron task. Cron task 8 (deleteFtpData), queued when an FTP account is deleted, calls FileDir::makeCorrectDir() without the $fixed_homedir argument, so the symlink component walk is skipped, and then executes 'rm -rf' as root on the resulting path with string-level guards only. Because makeCorrectDir() appends a trailing slash, GNU rm dereferences a symlink used either as an intermediate path component or as the final component. An authenticated customer who can write to the FTP home directory can plant a symlink between task insertion and cron execution, causing the root cron job to recursively delete arbitrary directory trees, resulting in cross-tenant data destruction and host denial of service. This issue is fixed in Froxlor 2.3.12.

CVSS v3
9.6
EG Score
9.6CRITICALhigh confidence
EG Risk
59
EG Risk 59/100CISA SSVC

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
Severity96% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.4%
EPSS %ILE
31st
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 26, 2026

Last Modified

September 28, 2026

Advisory Details (2)

Auto-updated Sep 30, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

FTP-data deletion cron task runs `rm -rf` as root through customer-planted symlinks (no containment check at cron time) · Advisory · froxlor/froxlor · GitHub

https://github.com/froxlor/froxlor/security/advisories/GHSA-px4q-2rf7-cvcf
generic

Froxlor before 2.3.12 Arbitrary File Deletion via Symlink | Advisories | VulnCheck

https://www.vulncheck.com/advisories/froxlor-before-2.3.12-arbitrary-file-deletion-via-symlink

Vendor Advisories for CVE-2026-100715(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 57× in last 7d / 66× 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. 2026-10-04 09:44 UTCGHSA enrichment
  2. 2026-10-04 05:42 UTCGHSA enrichment
  3. 2026-10-04 01:41 UTCGHSA enrichment
  4. 2026-10-03 21:40 UTCGHSA enrichment
  5. 2026-10-03 17:38 UTCEG score recompute
  6. 2026-10-03 17:38 UTCGHSA enrichment
  7. 2026-10-03 14:25 UTCEPSS rescore
  8. 2026-10-03 13:37 UTCGHSA enrichment
  9. 2026-10-03 09:35 UTCGHSA enrichment
  10. 2026-10-03 05:31 UTCGHSA enrichment
  11. 2026-10-03 01:29 UTCGHSA enrichment
  12. 2026-10-02 21:27 UTCGHSA enrichment
  13. 2026-10-02 17:20 UTCEG score recompute
  14. 2026-10-02 17:20 UTCGHSA enrichment
  15. 2026-10-02 13:15 UTCGHSA enrichment
  16. 2026-10-02 09:14 UTCGHSA enrichment
  17. 2026-10-02 05:12 UTCGHSA enrichment
  18. 2026-10-02 01:07 UTCGHSA enrichment
  19. 2026-10-01 21:02 UTCEG score recompute
  20. 2026-10-01 21:02 UTCGHSA enrichment
  21. 2026-10-01 19:49 UTCEPSS rescore
  22. 2026-10-01 17:00 UTCGHSA enrichment
  23. 2026-10-01 12:26 UTCGHSA enrichment
  24. 2026-10-01 08:24 UTCGHSA enrichment
  25. 2026-10-01 04:22 UTCGHSA enrichment
Show 41 more
  1. 2026-10-01 00:21 UTCGHSA enrichment
  2. 2026-09-30 20:18 UTCGHSA enrichment
  3. 2026-09-30 16:17 UTCEG score recompute
  4. 2026-09-30 16:17 UTCGHSA enrichment
  5. 2026-09-30 15:02 UTCEPSS rescore
  6. 2026-09-30 11:53 UTCGHSA enrichment
  7. 2026-09-30 07:51 UTCGHSA enrichment
  8. 2026-09-30 03:49 UTCGHSA enrichment
  9. 2026-09-29 23:47 UTCGHSA enrichment
  10. 2026-09-29 18:12 UTCEG score recompute
  11. 2026-09-29 18:12 UTCGHSA enrichment
  12. 2026-09-29 15:20 UTCEPSS rescore
  13. 2026-09-29 13:46 UTCGHSA enrichment
  14. 2026-09-29 09:44 UTCGHSA enrichment
  15. 2026-09-29 05:42 UTCGHSA enrichment
  16. 2026-09-29 01:41 UTCGHSA enrichment
  17. 2026-09-28 21:40 UTCEG score recompute
  18. 2026-09-28 21:40 UTCGHSA enrichment
  19. 2026-09-28 17:39 UTCEG score recompute
  20. 2026-09-28 17:38 UTCGHSA enrichment
  21. 2026-09-28 17:14 UTCEG score recompute
  22. 2026-09-28 17:13 UTCGHSA enrichment
  23. 2026-09-28 14:57 UTCEG score recompute
  24. 2026-09-28 14:57 UTCGHSA enrichment
  25. 2026-09-28 13:50 UTCEPSS rescore
  26. 2026-09-28 10:55 UTCGHSA enrichment
  27. 2026-09-28 06:53 UTCGHSA enrichment
  28. 2026-09-28 02:51 UTCGHSA enrichment
  29. 2026-09-27 22:49 UTCGHSA enrichment
  30. 2026-09-27 18:47 UTCGHSA enrichment
  31. 2026-09-27 14:46 UTCEG score recompute
  32. 2026-09-27 14:46 UTCGHSA enrichment
  33. 2026-09-27 10:43 UTCGHSA enrichment
  34. 2026-09-27 06:38 UTCGHSA enrichment
  35. 2026-09-27 02:37 UTCGHSA enrichment
  36. 2026-09-26 22:34 UTCGHSA enrichment
  37. 2026-09-26 18:29 UTCEG score recompute
  38. 2026-09-26 18:28 UTCGHSA enrichment
  39. 2026-09-26 14:25 UTCEG score recompute
  40. 2026-09-26 13:33 UTCEG score recompute
  41. 2026-09-26 13:30 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-100715?
CVE-2026-100715 is a critical vulnerability published on September 26, 2026. Froxlor through 2.3.10 is vulnerable to arbitrary file deletion via symlink following in the FTP data deletion cron task. Cron task 8 (deleteFtpData), queued when an FTP account is deleted, calls FileDir::makeCorrectDir() without the $fixed_homedir argument, so the symlink component walk is…
When was CVE-2026-100715 disclosed?
CVE-2026-100715 was first published on September 26, 2026, with the most recent update on September 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-100715 actively exploited?
CVE-2026-100715 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (31st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-100715?
CVE-2026-100715 has a CVSS base score of 9.6 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-100715?
A fix for CVE-2026-100715 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-100715 are linked in the Vendor Advisories panel on this page.

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