CVE-2026-1560

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-1560", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "state": "PUBLISHED", "assignerShortName": "Wordfence", "dateReserved": "2026-01-28T19:28:12.274Z", "datePublished": "2026-02-11T08:26:27.556Z", "dateUpdated": "2026-04-08T17:16:14.897Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2026-04-08T17:16:14.897Z"}, "affected": [{"vendor": "nko", "product": "Custom Block Builder \u2013 Lazy Blocks", "versions": [{"version": "0", "status": "affected", "lessThanOrEqual": "4.2.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The Custom Block Builder \u2013 Lazy Blocks plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.2.0 via multiple functions in the 'LazyBlocks_Blocks' class. This makes it possible for authenticated attackers, with Contributor-level access and above, to execute code on the server."}], "title": "Custom Block Builder \u2013 Lazy Blocks <= 4.2.0 - Authenticated (Contributor+) Remote Code Execution", "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b1853c88-277b-4955-b042-aeed1cffb49b?source=cve"}, {"url": "https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-rest.php#L88"}, {"url": "https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-blocks.php#L1637"}, {"url": "https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-blocks.php#L766"}, {"url": "https://plugins.trac.wordpress.org/changeset/3454012/"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-94 Improper Control of Generation of Code ('Code Injection')", "cweId": "CWE-94", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH"}}], "credits": [{"lang": "en", "type": "finder", "value": "Youssef Elouaer"}], "timeline": [{"time": "2026-01-29T00:40:11.000Z", "lang": "en", "value": "Vendor Notified"}, {"time": "2026-02-10T00:00:00.000Z", "lang": "en", "value": "Disclosed"}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-02-11T15:40:33.786012Z", "id": "CVE-2026-1560", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-11T15:44:32.463Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-1560", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-02-11T15:40:33.786012Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-11T15:40:34.510Z"}}], "cna": {"title": "Custom Block Builder \u2013 Lazy Blocks <= 4.2.0 - Authenticated (Contributor+) Remote Code Execution", "credits": [{"lang": "en", "type": "finder", "value": "Youssef Elouaer"}], "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 8.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}}], "affected": [{"vendor": "nko", "product": "Custom Block Builder \u2013 Lazy Blocks", "versions": [{"status": "affected", "version": "*", "versionType": "semver", "lessThanOrEqual": "4.2.0"}], "defaultStatus": "unaffected"}], "timeline": [{"lang": "en", "time": "2026-01-29T00:40:11.000+00:00", "value": "Vendor Notified"}, {"lang": "en", "time": "2026-02-10T00:00:00.000+00:00", "value": "Disclosed"}], "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b1853c88-277b-4955-b042-aeed1cffb49b?source=cve"}, {"url": "https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-rest.php#L88"}, {"url": "https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-blocks.php#L1637"}, {"url": "https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-blocks.php#L766"}, {"url": "https://plugins.trac.wordpress.org/changeset/3454012/"}], "descriptions": [{"lang": "en", "value": "The Custom Block Builder \u2013 Lazy Blocks plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.2.0 via multiple functions in the 'LazyBlocks_Blocks' class. This makes it possible for authenticated attackers, with Contributor-level access and above, to execute code on the server."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-94", "description": "CWE-94 Improper Control of Generation of Code ('Code Injection')"}]}], "providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2026-02-11T08:26:27.556Z"}}}, "cveMetadata": {"cveId": "CVE-2026-1560", "state": "PUBLISHED", "dateUpdated": "2026-02-11T15:44:32.463Z", "dateReserved": "2026-01-28T19:28:12.274Z", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "datePublished": "2026-02-11T08:26:27.556Z", "assignerShortName": "Wordfence"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Custom Block Builder \u2013 Lazy Blocks", "vendor": "nko", "versions": [{"lessThanOrEqual": "4.2.0", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@wordfence.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Custom Block Builder \u2013 Lazy Blocks plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.2.0 via multiple functions in the 'LazyBlocks_Blocks' class. This makes it possible for authenticated attackers, with Contributor-level access and above, to execute code on the server."}, {"lang": "es", "value": "El plugin Custom Block Builder \u2013 Lazy Blocks para WordPress es vulnerable a la ejecuci\u00f3n remota de c\u00f3digo en todas las versiones hasta la 4.2.0, inclusive, a trav\u00e9s de m\u00faltiples funciones en la clase 'LazyBlocks_Blocks'. Esto hace posible que atacantes autenticados, con acceso de nivel Colaborador y superior, ejecuten c\u00f3digo en el servidor."}], "id": "CVE-2026-1560", "lastModified": "2026-06-17T10:16:04.430", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "security@wordfence.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-1560", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-02-11T15:40:33.786012Z", "version": "2.0.3"}}]}, "published": "2026-02-11T09:15:51.353", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-blocks.php#L1637"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-blocks.php#L766"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-rest.php#L88"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/changeset/3454012/"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b1853c88-277b-4955-b042-aeed1cffb49b?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-94"}], "source": "security@wordfence.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.2.0]"}}], "product": "custom_block_builder_\u2013_lazy_blocks", "vendor": "nko"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": null}], "product": "wordpress", "vendor": "wordpress"}], "created": "2026-02-11T21:45:59.585753+00:00", "updated": "2026-06-18T05:00:17.430991+00:00", "vendors": ["nko", "nko$PRODUCT$custom_block_builder_\u2013_lazy_blocks", "wordpress", "wordpress$PRODUCT$wordpress"]}