WordPress SEO Alert 1.59 Cross Site Scripting

`Tittle:  
WordPress Plugin SEO ALert <= 1.59 - Admin+ Stored XSS  
  
  
References:  
CVE-2023-2225  
  
Author:  
Taurus Omar   
  
Description:  
The plugin does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).  
  
Affects Plugins:  
SEO ALert - No known fix - plugin closed  
  
Proof of Concept:  
  
1. Go to Vanilla Beans » SEO Alert.  
  
2. In "Slack Alert for" » "Slack Channel" add payload: "><audio src=x onerror=confirm("XSS")>  
  
3. Save to get the XSS trigger.   
  
Classification:  
Type XSS   
OWASP top 10 A7: Cross-Site Scripting (XSS)  
CWE-79  
  
wpScan:  
https://wpscan.com/vulnerability/0af475ba-5c02-4f62-876d-6235a745bbd6  
`