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The Shield Security plugin for WordPress is vulnerable to reflected cross-site scripting (XSS) via the 'message' parameter in all versions up to and including 21.0.8. The issue is caused by insufficient input sanitization and output escaping of attacker-controlled input before it is reflected into a web page. An unauthenticated attacker can craft a malicious request or link containing arbitrary script payloads in the 'message' parameter; if a victim visits the crafted URL or otherwise triggers the affected page, the injected script executes in the victim’s browser within the security context of the target WordPress site.
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No public exploit code observed for this vulnerability.
1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.