Headline
WordPress PrePost SEO 3.0 Cross Site Scripting
WordPress PrePost SEO plugin versions 3.0 and below suffer from a persistent cross site scripting vulnerability.
Tittle:WordPress Plugin PrePost SEO <= 3.0 - Admin + Stored Cross-Site ScriptingReferences:CVE-2023-2029Author:Taurus Omar Description:The plugin does not properly sanitize some of its settings, which could allow high-privilege users to perform Stored Cross-Site Scripting (XSS) attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)Affects Plugins:PrePost SEO - No known fix - plugin closedProof of Concept:1. Add XSS payload to plugin's "Account API key" setting: "><iframe src="<svg onload=alert(4);>">2. Save and see XSS exploit. Classification:Type XSS OWASP top 10 A7: Cross-Site Scripting (XSS)CWE-79wpScan:https://wpscan.com/vulnerability/4889ad5a-c8c4-4958-b176-64560490497bRelated news
CVE-2023-2029
The PrePost SEO WordPress plugin through 3.0 does not properly sanitize some of its settings, which could allow high-privilege users to perform Stored Cross-Site Scripting (XSS) attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)