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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-84899
StatePUBLISHED
AssignerWPScan
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-05 07:17:14 UTC
Updated2026-09-05 07:17:14 UTC
DescriptionThe 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 administrator who reviews the pending submission.

Risk And Classification

Problem Types: CWE-79 Cross-Site Scripting (XSS)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Unknown VikWidgetsLoader affected 1.11.0 1.12.0 semver Not specified

References

ReferenceSourceLinkTags
wpscan.com/vulnerability/4e0beb72-d73b-4802-894d-141aadbd8d4f [email protected] wpscan.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Artus KG (en)

CNA: WPScan (en)

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