CVE-2025-13841

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{}

{"analysis": {"en": {"generated_at": "2026-04-21T00:31:03.957177+00:00", "value": {"mitigation_remediation": ["Upgrade Smart App Banners to the latest available version that removes the vulnerability.", "If an update is unavailable, deactivate or uninstall the plugin and re\u2011implement the desired functionality with a secure alternative.", "Immediately review and cleanse all posts and pages that used the 'app\u2011store\u2011download' shortcode to delete injected scripts and ensure proper sanitization before storing content."], "summary": {"action": "Apply Patch", "impact": "Stored Cross\u2011Site Scripting via shortcode attributes resulting in arbitrary script execution for visitors"}, "threat_synthesis": {"affected_systems": "WordPress sites that have installed the Smart App Banners plugin, version 1.2 or any earlier release. The vulnerability exists in all releases up to and including 1.2, so any site using the plugin in those versions is impacted.", "description_and_impact": "The Smart App Banners WordPress plugin allows stored cross\u2011site scripting through the 'size' and 'verticalalign' parameters of its 'app\u2011store\u2011download' shortcode. Because input is not sufficiently sanitized or properly escaped, an authenticated user with Contributor access or higher can inject JavaScript that will run whenever any visitor loads a page containing the malicious shortcode, giving the attacker the ability to deface content, steal data, or perform further attacks.", "risk_and_exploitability": "The CVSS score of 6.4 indicates moderate severity. The EPSS score of less than 1% shows a low probability of exploitation. The vulnerability is not listed in the CISA KEV catalog. Attackers need authenticated Contributor\u2011level or higher access to inject the malicious shortcode; once the shortcode is stored, all visitors to the relevant page will have the injected script executed, providing a direct path for exploitation without additional prerequisites."}}}}, "created": "2026-01-08T09:49:53.666639+00:00", "updated": "2026-04-21T00:45:23.082668+00:00", "vendors": ["clevelandwebdeveloper", "clevelandwebdeveloper$PRODUCT$smart_app_banners", "wordpress", "wordpress$PRODUCT$wordpress"]}