{"id":"CVE-2026-1560","state":"PUBLISHED","title":"Custom Block Builder – Lazy Blocks <= 4.2.0 - Authenticated (Contributor+) Remote Code Execution","description":"The Custom Block Builder – 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.","publishedAt":"2026-02-11T08:26:27.556Z","updatedAt":"2026-04-08T17:16:14.897Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"Wordfence"},"assigner":"Wordfence","products":["nko Custom Block Builder – Lazy Blocks"],"affected":[{"vendor":"nko","product":"Custom Block Builder – Lazy Blocks","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"4.2.0","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/b1853c88-277b-4955-b042-aeed1cffb49b?source=cve","https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-rest.php#L88","https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-blocks.php#L1637","https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-blocks.php#L766","https://plugins.trac.wordpress.org/changeset/3454012/"],"weaknesses":["CWE-94"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/1xxx/CVE-2026-1560.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-1560","state":"PUBLISHED","datePublished":"2026-02-11T08:26:27.556Z","dateUpdated":"2026-04-08T17:16:14.897Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2026-01-28T19:28:12.274Z"},"containers":{"cna":{"title":"Custom Block Builder – Lazy Blocks <= 4.2.0 - Authenticated (Contributor+) Remote Code Execution","descriptions":[{"lang":"en","value":"The Custom Block Builder – 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."}],"affected":[{"vendor":"nko","product":"Custom Block Builder – Lazy Blocks","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"4.2.0","versionType":"semver"}]}],"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/"}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-94","lang":"en","description":"CWE-94 Improper Control of Generation of Code ('Code Injection')","type":"CWE"}]}],"providerMetadata":{"shortName":"Wordfence","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateUpdated":"2026-04-08T17:16:14.897Z"},"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":[{"title":"CISA ADP Vulnrichment","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"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-11T15:44:32.463Z"}}]}}}