f4 Post Tree < 2.0.5 - Subscriber+ Arbitrary Post Parent/Menu Order Modification
Priority MEDIUM 53Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
The F4 Post Tree WordPress plugin before 2.0.5 does not perform capability checks or CSRF/nonce verification on one of its AJAX actions, allowing authenticated users with Subscriber-level access and above to modify the parent and menu order of arbitrary posts.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00142 3rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed F4 Post Tree (Unknown): 2.0.5
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | F4 Post Tree | before 2.0.5 | 2.0.5 | Patch available | CNA |
- F4 Post Tree VendorUnknown Affected before 2.0.5 Fixed in 2.0.5 Patch available CNA
Remediation
- Fix · CNA F4 Post Tree (Unknown) Fixed in 2.0.5
Timeline
- 2026-10-02 Threatist record created from CVE-2026-9676
- 2026-10-03 Alias added: GHSA-m9qg-5xmj-j7gg
References
Sources
- CVE-2026-9676 · CVE Program
- CVE-2026-9676 · NVD
- FIRST EPSS
- GHSA-m9qg-5xmj-j7gg · 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