Vulnerability · Published Sep 5, 2026 · Assigned by WPScan
CVE-2026-84899VikWidgetsLoader < 1.12.0 - Contributor+ Stored XSS via Gutenberg Block class_suffix
Medium 6.8
In plain English
A medium-severity cross-site scripting in VikWidgetsLoader from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).
Severity (CVSS 3.1)6.8Medium
Exploit odds (30 days)0.4%top 62.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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 administrator who reviews the pending submission.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Unknown | VikWidgetsLoader | 1.11.0 – before 1.12.0 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
References
- https://wpscan.com/vulnerability/4e0beb72-d73b-4802-894d-141aadbd8d4f/ exploit, vdb-entry, technical-description