Insecure direct object reference in Froxlor email template editor
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
Froxlor before 2.3.14 contains an insecure direct object reference in the email template editor (admin_templates.php). The mail body is fetched by mailbodyid without an ownership check against the requesting admin, which is CWE-639. An authenticated reseller admin can pair their own subjectid with other mailbodyid values to read email templates belonging to other admins, including the full administrator's templates. Exploit proof-of-concept code is reported in CISA's SSVC data.
Written with Claude Haiku 5.5 from the sources below · 2026-10-27
Description from the CNA
Froxlor before 2.3.14 contains an insecure direct object reference vulnerability in the email template editor (admin_templates.php) because the mail body is fetched by mailbodyid without an adminid ownership check. Authenticated reseller admins can pair their own subjectid with sequential foreign mailbodyid values in edit requests to read other admins' email templates, including the full administrator's.
Why it matters now
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
Remediation
Update Froxlor to version 2.3.14 or later, which fixes the issue.
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-2026-71728 Newline injection in Froxlor enables local privilege escalationPriority HIGH 70
- TI-2026-71729 Missing authorization in Froxlor MySQL server and cronjob APIPriority MEDIUM 57
Timeline
- 2026-10-13 Threatist record created from CVE-2026-109963
- 2026-10-13 Alias added: GHSA-c3jc-298j-rpv5
- 2026-10-14 CISA SSVC decision points changed
- 2026-10-14 Priority changed: LOW → MEDIUM
References
More froxlor vulnerabilities
- 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
Sources
- CVE-2026-109963 · CVE Program
- CVE-2026-109963 · NVD
- FIRST EPSS
- GHSA-c3jc-298j-rpv5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences