CVE-2026-84899

The VikWidgetsLoader WordPress plugin, in versions prior to 1.12.0 , is vulnerable to a Stored Cross-Site Scripting (XSS) flaw. The root cause is the failure to sanitize or escape a block attribute—specifically identified in some sources as the Gutenberg Block class_suffix —before it is outputted...

CVE-2026-84899 VikWidgetsLoader < 1.12.0 - Contributor+ Stored XSS via Gutenberg Block class_suffix

The VikWidgetsLoader WordPress plugin before 1.12.0 does not sanitise or escape a block attribute before outputting it inside an inline script, allowing users with the Contributor role to store arbitrary JavaScript that executes in the browser of any user viewing the affected post, including the...

CVE-2026-84899 VikWidgetsLoader < 1.12.0 - Contributor+ Stored XSS via Gutenberg Block class_suffix

The VikWidgetsLoader WordPress plugin before 1.12.0 does not sanitise or escape a block attribute before outputting it inside an inline script, allowing users with the Contributor role to store arbitrary JavaScript that executes in the browser of any user viewing the affected post, including the...