Lazy Blocks <= 4.1.0 - Missing Authorization
| CVE | CVE-2025-58258 |
|---|---|
| CVSS | 4.3 (Medium) |
| Publicly Published | September 22, 2025 |
| Last Updated | September 26, 2025 |
| Researcher |
MD ISMAIL
|
Description
The Lazy Blocks plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the maybe_export_json() function in versions up to, and including, 4.1.0. This makes it possible for authenticated attackers, with contributor-level access and above, to export block data.
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Vulnerability Details for Custom Block Builder – Lazy Blocks
| Software Type | Plugin |
|---|---|
| Software Slug | lazy-blocks (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 4.1.1, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Custom Block Builder – Lazy Blocks
| # | Title | CVE ID | CVSS | Researchers | Date |
|---|---|---|---|---|---|
| 1 | Custom Block Builder – Lazy Blocks < 4.3.0 - Authenticated (Administrator+) Stored Cross-Site Scripting | CVE-2026-8981 | Luca Jungnickel | June 11, 2026 | |
| 2 | Custom Block Builder – Lazy Blocks <= 4.2.0 - Authenticated (Contributor+) Remote Code Execution | CVE-2026-1560 | Youssef Elouaer | February 10, 2026 | |
| 3 | Custom Block Builder – Lazy Blocks <= 3.8.2 - Reflected Cross-Site Scripting | CVE-2024-12878 | Hassan Khan Yusufzai - Splint3r7 | February 4, 2025 |
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