Answer in brief
CVE-2026-13167 records a Unknown severity vulnerability in Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI <= 3.5.2 - Missing Authorization to Authenticated (Delegated+) Arbitrary Plugin Activation via REST API and AJAX Endpoints. The current sources do not mark it as known exploited. The current feed maps wpeverest/Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2026-13167 records a Unknown severity vulnerability in Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI <= 3.5.2 - Missing Authorization to Authenticated (Delegated+) Arbitrary Plugin Activation via REST API and AJAX Endpoints. The current sources do not mark it as known exploited. The current feed maps wpeverest/Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps wpeverest/Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| wpeverest/Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AIgeneric | 0 | Not reported |
Published upstream
Aug 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 16, 2026
The Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.5.2. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with delegated form management access and above, to activate arbitrary already-installed WordPress plugins — including previously deactivated or vulnerable plugins — without holding the core activate_plugins capability. Exploitation requires the target user to hold a delegated Everest Forms capability (manage_everest_forms, everest_forms_create_forms, or everest_forms_view_forms), which the plugin's own roles and permissions tool allows administrators to assign to non-administrator roles such as Author; the nonces required to exploit the AJAX handlers are emitted on EVF admin pages accessible to any such delegated user.
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps wpeverest/Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| wpeverest/Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AIgeneric | 0 | Not reported |
Published upstream
Aug 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 16, 2026
The Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.5.2. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with delegated form management access and above, to activate arbitrary already-installed WordPress plugins — including previously deactivated or vulnerable plugins — without holding the core activate_plugins capability. Exploitation requires the target user to hold a delegated Everest Forms capability (manage_everest_forms, everest_forms_create_forms, or everest_forms_view_forms), which the plugin's own roles and permissions tool allows administrators to assign to non-administrator roles such as Author; the nonces required to exploit the AJAX handlers are emitted on EVF admin pages accessible to any such delegated user.
Quoted source text, attributed separately from HOL analysis.