Packages.php in Simple Machines Forum (SMF) 2.1 allows remote attackers to conduct PHP…
Priority MEDIUM 45CWE-94Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-94.
Summary
Packages.php in Simple Machines Forum (SMF) 2.1 allows remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via the themechanges array parameter.
Why it matters now
EPSS 0.01566 75th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:simplemachines:simple_machines_forum:2.1:*:*:*:*:*:*:* | 2.1 | Vulnerable | SimpleMachines |
- cpe:2.3:a:simplemachines:simple_machines_forum:2.1:*:*:*:*:*:*:* Versions 2.1 Vulnerable ·SimpleMachines
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2016-5726
- 2026-10-03 Alias added: GHSA-x6jj-7mw4-r7fv
References
More SimpleMachines Simple Machines Forum vulnerabilities
- TI-2025-41147 A stored cross-site scripting (XSS) vulnerability in Simple Machines Forum v2.1.6 allows… CVSS 3.1MEDIUM 6.1
- TI-2024-06892 SimpleMachines SMF User Alert Read Status index.php resource injection CVSS 4.0MEDIUM 5.3
- TI-2024-06891 SimpleMachines SMF Delete User index.php resource injection CVSS 4.0MEDIUM 5.3
- TI-2025-02251 SimpleMachines SMF ManageNews.php cross site scripting CVSS 4.0MEDIUM 5.1
- TI-2025-02250 SimpleMachines SMF ManageAttachments.php cross site scripting CVSS 4.0MEDIUM 5.1
- TI-2013-06118 Simple Machines Forum (SMF) 2.0.4 allows local file inclusion, with resultant remote code… CVSS 3.0HIGH 8.8
Sources
- CVE-2016-5726 · CVE Program
- CVE-2016-5726 · NVD
- FIRST EPSS
- GHSA-x6jj-7mw4-r7fv · 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