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CVE-2026-1560

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d8096246c6f53d3744428a28d3e86f3b6cab5eaedf808ecb09a545fe081b2ac1
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"Custom Block Builder – Lazy Blocks","vendor":"nko","versions":[{"lessThanOrEqual":"4.2.0","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:62482131f8ee0d46630e05592159bd6de770a1f3eed0f9dbcdc1fcf758e6977a · sha256:68f734306fa4bcdf… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"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","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:62482131f8ee0d46630e05592159bd6de770a1f3eed0f9dbcdc1fcf758e6977a · sha256:68f734306fa4bcdf… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-94","description":"CWE-94 Improper Control of Generation of Code ('Code Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:62482131f8ee0d46630e05592159bd6de770a1f3eed0f9dbcdc1fcf758e6977a · sha256:68f734306fa4bcdf… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"url":"https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-blocks.php#L1637"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:62482131f8ee0d46630e05592159bd6de770a1f3eed0f9dbcdc1fcf758e6977a · sha256:68f734306fa4bcdf… · /containers/cna/references/2
{"url":"https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-blocks.php#L766"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:62482131f8ee0d46630e05592159bd6de770a1f3eed0f9dbcdc1fcf758e6977a · sha256:68f734306fa4bcdf… · /containers/cna/references/3
{"url":"https://plugins.trac.wordpress.org/browser/lazy-blocks/trunk/classes/class-rest.php#L88"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:62482131f8ee0d46630e05592159bd6de770a1f3eed0f9dbcdc1fcf758e6977a · sha256:68f734306fa4bcdf… · /containers/cna/references/1
{"url":"https://plugins.trac.wordpress.org/changeset/3454012/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:62482131f8ee0d46630e05592159bd6de770a1f3eed0f9dbcdc1fcf758e6977a · sha256:68f734306fa4bcdf… · /containers/cna/references/4
{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/b1853c88-277b-4955-b042-aeed1cffb49b?source=cve"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:62482131f8ee0d46630e05592159bd6de770a1f3eed0f9dbcdc1fcf758e6977a · sha256:68f734306fa4bcdf… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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