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TI-2026-71728 Aliases CVE-2026-109961GHSA-5986-h43p-hp85

Newline injection in Froxlor enables local privilege escalation

Priority HIGH 70CWE-74Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · High · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Froxlor from 0.10.0 before 2.3.14 contains a newline injection flaw (CWE-74) in the additional_members parameter of the Ftps.add API. The REBUILD_NSSUSERS cron writes the injected newline characters unsanitized into the NSS group database, which is owned by root. An authenticated customer can inject arbitrary group entries, including privileged ones, which allows local privilege escalation.

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

Description from the CNA

Froxlor 0.10.0 before 2.3.14 contains a newline injection vulnerability that allows authenticated customers to inject arbitrary entries into the root-owned NSS group database via the unvalidated additional_members parameter of the Ftps.add API. Attackers can embed newline characters that the REBUILD_NSSUSERS cron writes unsanitized into /var/lib/extrausers/group, creating privileged group entries for local privilege escalation.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00223 13th percentileScored 2026-11-07
Fix Fixed froxlor (froxlor): 2.3.14

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
froxlorfroxlor0.10.0 to before 2.3.142.3.14Patch availableCNA
  • froxlor Vendorfroxlor Affected 0.10.0 to before 2.3.14 Fixed in 2.3.14 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:froxlor:froxlor:*:*:*:*:*:*:*:*——froxlor
  • cpe:2.3:a:froxlor:froxlor:*:*:*:*:*:*:*:* Versions — — ·froxlor

Remediation

Update Froxlor to 2.3.14, which fixes this flaw.

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

  • Fix · CNA froxlor (froxlor) Fixed in 2.3.14

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    froxlor 2.3.14

    4 records Highest priority Priority HIGH 2 HIGH, 2 MEDIUM

    Other records, highest priority first

    • TI-2026-71727 Stored cross-site scripting in Froxlor via customer theme valuePriority HIGH 73
    • TI-2026-71730 Insecure direct object reference in Froxlor email template editorPriority MEDIUM 57
    • TI-2026-71729 Missing authorization in Froxlor MySQL server and cronjob APIPriority MEDIUM 57
    Show all 4 records →

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-109961
  2. 2026-10-13 Alias added: GHSA-5986-h43p-hp85
  3. 2026-10-14 Priority changed: MEDIUM → LOW
  4. 2026-10-26 CISA SSVC decision points changed
  5. 2026-10-26 Priority changed: LOW → HIGH

References

Advisory 1

  • TI-2023-00300 Command Injection in froxlor/froxlor CVSS 3.1HIGH 8.8
  • TI-2023-02973 Improper Restriction of Excessive Authentication Attempts in froxlor/froxlor CVSS 3.1CRITICAL 9.8
  • TI-2023-01234 Authentication Bypass by Primary Weakness in froxlor/froxlor CVSS 3.1CRITICAL 9.8
  • TI-2023-01911 Unrestricted Upload of File with Dangerous Type in froxlor/froxlor CVSS 3.1HIGH 8.8
  • TI-2026-64867 froxlor before 2.3.12 Authentication Bypass via Session Persistence CVSS 4.0HIGH 8.7
  • TI-2026-76945 Symlink following in Froxlor enables root privilege escalation CVSS 4.0CRITICAL 9.4
See all 86 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences