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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
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