{"id":"CVE-2026-84899","state":"PUBLISHED","title":"VikWidgetsLoader < 1.12.0 - Contributor+ Stored XSS via Gutenberg Block class_suffix","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.","publishedAt":"2026-09-05T06:00:09.057Z","updatedAt":"2026-09-06T10:36:39.520Z","severity":{"score":6.8,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"WPScan","products":["Unknown VikWidgetsLoader"],"affected":[{"vendor":"Unknown","product":"VikWidgetsLoader","defaultStatus":"unaffected","versions":[{"version":"1.11.0","status":"affected","lessThan":"1.12.0","versionType":"semver"}]}],"references":["https://wpscan.com/vulnerability/4e0beb72-d73b-4802-894d-141aadbd8d4f/"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:13:15.269Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/84xxx/CVE-2026-84899.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-84899","state":"PUBLISHED","datePublished":"2026-09-05T06:00:09.057Z","dateUpdated":"2026-09-06T10:36:39.520Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-09-02T15:13:26.478Z"},"containers":{"cna":{"title":"VikWidgetsLoader < 1.12.0 - Contributor+ Stored XSS via Gutenberg Block class_suffix","descriptions":[{"lang":"en","value":"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":[{"vendor":"Unknown","product":"VikWidgetsLoader","defaultStatus":"unaffected","versions":[{"version":"1.11.0","status":"affected","lessThan":"1.12.0","versionType":"semver"}]}],"references":[{"url":"https://wpscan.com/vulnerability/4e0beb72-d73b-4802-894d-141aadbd8d4f/","tags":["exploit","vdb-entry","technical-description"]}],"problemTypes":[{"descriptions":[{"description":"CWE-79 Cross-Site Scripting (XSS)","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"WPScan","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateUpdated":"2026-09-05T06:00:09.057Z"},"credits":[{"lang":"en","value":"Artus KG","type":"finder"},{"lang":"en","value":"WPScan","type":"coordinator"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"WPScan CVE Generator"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.8,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"HIGH","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-09-06T10:28:09.124556Z","id":"CVE-2026-84899","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","type":"CWE","lang":"en","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-06T10:36:39.520Z"}}]}}}