F4 Post Tree Plugin up to 2.0.4 on WordPress AJAX Action authorization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k4.14

Summaryinfo

A vulnerability was found in F4 Post Tree Plugin up to 2.0.4 on WordPress and classified as critical. This affects an unknown function of the component AJAX Action Handler. Executing a manipulation can lead to authorization. This vulnerability is tracked as CVE-2026-9676. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in F4 Post Tree Plugin up to 2.0.4 on WordPress and classified as critical. This vulnerability affects an unknown code of the component AJAX Action Handler. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was disclosed by Mustafa Ahmed. The advisory is available at wpscan.com. This vulnerability was named CVE-2026-9676 since 05/27/2026. The exploitation appears to be easy. The attack can be initiated remotely. The technical details are unknown and an exploit is not available.

Upgrading to version 2.0.5 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-40040). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-862 / CWE-863 / CWE-285
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: F4 Post Tree Plugin 2.0.5

Timelineinfo

05/27/2026 CVE reserved
06/29/2026 +33 days Advisory disclosed
06/29/2026 +0 days VulDB entry created
06/29/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: wpscan.com
Researcher: Mustafa Ahmed
Status: Confirmed

CVE: CVE-2026-9676 (🔒)
GCVE (CVE): GCVE-0-2026-9676
GCVE (VulDB): GCVE-100-374602
EUVD: 🔒

Entryinfo

Created: 06/29/2026 10:53
Updated: 06/29/2026 11:02
Changes: 06/29/2026 10:53 (56), 06/29/2026 11:02 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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