{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-8981", "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "state": "PUBLISHED", "assignerShortName": "WPScan", "dateReserved": "2026-05-19T13:11:53.990Z", "datePublished": "2026-06-09T06:00:09.486Z", "dateUpdated": "2026-06-09T06:00:09.486Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "shortName": "WPScan", "dateUpdated": "2026-06-09T06:00:09.486Z"}, "title": "Lazy Blocks < 4.3.0 - Admin+ Stored XSS via Custom Block Frontend HTML", "problemTypes": [{"descriptions": [{"description": "CWE-79 Cross-Site Scripting (XSS)", "lang": "en", "type": "CWE"}]}], "affected": [{"vendor": "Unknown", "product": "Custom Block Builder", "versions": [{"status": "affected", "versionType": "semver", "version": "0", "lessThan": "4.3.0"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The Custom Block Builder WordPress plugin before 4.3.0 does not consistently check the unfiltered_html capability across all paths that write to its block template code fields, allowing administrators on multisite installations (or single-site installs with DISALLOW_UNFILTERED_HTML defined) to inject arbitrary JavaScript that executes for any visitor of pages embedding the affected block."}], "references": [{"url": "https://wpscan.com/vulnerability/9815b0e6-e411-4a5c-9c63-30bad21da698/", "tags": ["exploit", "vdb-entry", "technical-description"]}], "credits": [{"lang": "en", "value": "Luca Jungnickel", "type": "finder"}, {"lang": "en", "value": "WPScan", "type": "coordinator"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "WPScan CVE Generator"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "The Custom Block Builder WordPress plugin before 4.3.0 does not consistently check the unfiltered_html capability across all paths that write to its block template code fields, allowing administrators on multisite installations (or single-site installs with DISALLOW_UNFILTERED_HTML defined) to inject arbitrary JavaScript that executes for any visitor of pages embedding the affected block."}], "id": "CVE-2026-8981", "lastModified": "2026-06-09T06:16:54.067", "metrics": {}, "published": "2026-06-09T06:16:54.067", "references": [{"source": "contact@wpscan.com", "url": "https://wpscan.com/vulnerability/9815b0e6-e411-4a5c-9c63-30bad21da698/"}], "sourceIdentifier": "contact@wpscan.com", "vulnStatus": "Received"}

{}

{"created": "2026-06-09T07:30:26.214938+00:00", "updated": "2026-06-09T07:30:26.214950+00:00", "vendors": [], "weaknesses": ["CWE-79"]}