{"affected":[{"affectedData":[{"defaultStatus":"unaffected","product":"Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns","vendor":"wpdevteam","versions":[{"lessThanOrEqual":"4.5.12","status":"affected","version":"0","versionType":"semver"}]}],"source":"security@wordfence.com"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:wpdeveloper:essential_blocks:*:*:*:*:free:wordpress:*:*","matchCriteriaId":"4E47F5AA-8EA6-43A8-8031-9ECE94DD9A70","versionEndExcluding":"4.5.13","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"The Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘tagName’ parameter in versions up to, and including, 4.5.12 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."},{"lang":"es","value":" El complemento Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates para WordPress es vulnerable a cross site scripting almacenado a través del parámetro 'tagName' en versiones hasta la 4.5.12 incluida debido a una sanitización de entrada y un escape de salida insuficientes. Esto hace posible que atacantes autenticados, con permisos de nivel de colaborador y superiores, inyecten scripts web arbitrarios en páginas que se ejecutarán cada vez que un usuario acceda a una página inyectada."}],"id":"CVE-2024-4891","lastModified":"2026-06-17T08:03:07.043","metrics":{"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"exploitabilityScore":3.1,"impactScore":2.7,"source":"security@wordfence.com","type":"Secondary"},{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"exploitabilityScore":2.3,"impactScore":2.7,"source":"nvd@nist.gov","type":"Primary"}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"id":"CVE-2024-4891","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","timestamp":"2024-05-20T13:51:23.222284Z","version":"2.0.3"}}]},"published":"2024-05-18T05:15:46.917","references":[{"source":"security@wordfence.com","tags":["Product"],"url":"https://plugins.trac.wordpress.org/browser/essential-blocks/trunk/blocks/AdvancedHeading.php#L115"},{"source":"security@wordfence.com","tags":["Patch","Product"],"url":"https://plugins.trac.wordpress.org/changeset/3087677/"},{"source":"security@wordfence.com","tags":["Third Party Advisory"],"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/e1bcebb3-920b-40cc-aa5c-24a1f729b28d?source=cve"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Product"],"url":"https://plugins.trac.wordpress.org/browser/essential-blocks/trunk/blocks/AdvancedHeading.php#L115"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Product"],"url":"https://plugins.trac.wordpress.org/changeset/3087677/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/e1bcebb3-920b-40cc-aa5c-24a1f729b28d?source=cve"}],"sourceIdentifier":"security@wordfence.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-79"}],"source":"security@wordfence.com","type":"Secondary"},{"description":[{"lang":"en","value":"CWE-79"}],"source":"nvd@nist.gov","type":"Secondary"}]}