Threats Tagged 'cve-2026-15421'
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Threats Tagged 'cve-2026-15421'
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CVE-2026-15421: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in siteground Speed Optimizer – The All-In-One Performance-Boosting PluginCVE-2026-15421 0 The Speed Optimizer plugin for WordPress suffers from a stored cross-site scripting (XSS) vulnerability in all versions up to and including 7.8.0. This vulnerability arises from improper input sanitization and output escaping of image tag attributes. It allows authenticated users with contributor-level access or higher to inject malicious scripts that execute when other users view the affected pages. Exploitation requires the Lazy Load Media option to be enabled in the plugin settings. The vulnerability has a CVSS score of 6.4, indicating medium severity. Join the discussion | CVE Database V5 | 08/19/2026, 01:26:11 UTC Added: 08/19/2026, 01:49:56 UTC |
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