CVE-2026-84899VikWidgetsLoader < 1.12.0 - Contributor+ Stored XSS via Gutenberg Block class_suffix
Updated under an hour ago ()
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It affects Unknown VikWidgetsLoader. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.8 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- WPScan
- NVD analysis
- Deferred
- Record last updated
- Sep 6, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Unknown VikWidgetsLoader unknown:vikwidgetsloader (from the name) | from 1.11.0 before 1.12.0 | CNA record |
References
- https://wpscan.com/vulnerability/4e0beb72-d73b-4802-894d-141aadbd8d4f/exploit, vdb-entry, technical-description
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.