GenerateBlocks <= 1.3.5 - Authenticated (Contributor+) Stored Cross-Site Scripting

Wordfence Intelligence   >   Vulnerability Database   >   GenerateBlocks <= 1.3.5 - Authenticated (Contributor+) Stored Cross-Site Scripting
6.4
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2021-24751
CVSS 6.4 (Medium)
Publicly Published November 1, 2021
Last Updated January 22, 2024
Researcher apple502j

Description

The GenerateBlocks WordPress plugin before 1.4.0 does not validate the generateblocks/container block's tagName attribute, which could allow users with a role as low as contributor to perform Cross-Site Scripting attacks.

Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.

References

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Vulnerability Details for GenerateBlocks

GenerateBlocks

Software Type Plugin
Software Slug generateblocks (view on wordpress.org)
Patched? Yes
Remediation Update to version 1.4.0, or a newer patched version
Affected Version
  • <= 1.3.5
Patched Version
  • 1.4.0

Recent vulnerabilities in GenerateBlocks

GenerateBlocks <= 2.3.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Dynamic Tag Injection in HTML Attributes
6.4
CVE-2026-13458
Jul 31, 2026
Researcher: Or Benit
GenerateBlocks <= 2.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Headline Block 'linkMetaFieldType' Dynamic Link Attribute
6.4
CVE-2026-9756
Jul 2, 2026
Researcher: alex_henry20
GenerateBlocks <= 2.1.0 - Authenticated (Contributor+) Information Disclosure
4.3
CVE-2026-48877
May 27, 2026
Researcher: Abu Hurayra (HurayraIIT)
GenerateBlocks <= 2.2.0 - Insecure Direct Object Reference to Authenticated (Contributor+) Sensitive Information Exposure via Dynamic Tag Replacements
6.5
CVE-2026-3454
May 4, 2026
Researcher: kai63001
GenerateBlocks <= 2.1.2 - Authenticated (Contributor+) Information Exposure via Metadata
4.3
CVE-2025-12512
Dec 12, 2025
Researcher: Athiwat Tiprasaharn (Jitlada)
GenerateBlocks <= 2.1.1 - Improper Authorization to Authenticated (Contributor+) Arbitrary Options Disclosure
6.5
CVE-2025-11879
Oct 24, 2025
Researcher: Lucas Montes (NiRoX)
GenerateBlocks <= 1.9.1 - Authenticated (Contributor+) Sensitive Information Exposure via 'get_image_description'
4.3
CVE-2024-13546
Feb 28, 2025
Researcher: Nishiv
GenerateBlocks <= 1.8.2 - Sensitive Information Exposure
4.3
CVE-2024-1452
Mar 1, 2024
Researcher: Webbernaut
# Title CVE ID CVSS Researchers Date
1 GenerateBlocks <= 2.3.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Dynamic Tag Injection in HTML Attributes CVE-2026-13458 6.4 Or Benit July 31, 2026
2 GenerateBlocks <= 2.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Headline Block 'linkMetaFieldType' Dynamic Link Attribute CVE-2026-9756 6.4 alex_henry20 July 2, 2026
3 GenerateBlocks <= 2.1.0 - Authenticated (Contributor+) Information Disclosure CVE-2026-48877 4.3 Abu Hurayra (HurayraIIT) May 27, 2026
4 GenerateBlocks <= 2.2.0 - Insecure Direct Object Reference to Authenticated (Contributor+) Sensitive Information Exposure via Dynamic Tag Replacements CVE-2026-3454 6.5 kai63001 May 4, 2026
5 GenerateBlocks <= 2.1.2 - Authenticated (Contributor+) Information Exposure via Metadata CVE-2025-12512 4.3 Athiwat Tiprasaharn (Jitlada) December 12, 2025
6 GenerateBlocks <= 2.1.1 - Improper Authorization to Authenticated (Contributor+) Arbitrary Options Disclosure CVE-2025-11879 6.5 Lucas Montes (NiRoX) October 24, 2025
7 GenerateBlocks <= 1.9.1 - Authenticated (Contributor+) Sensitive Information Exposure via 'get_image_description' CVE-2024-13546 4.3 Nishiv February 28, 2025
8 GenerateBlocks <= 1.8.2 - Sensitive Information Exposure CVE-2024-1452 4.3 Webbernaut March 1, 2024
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