edge22 GenerateBlocks Plugin up to 2.2.1 on WordPress get_safe_user_meta_keys linkMetaFieldType cross site scripting

Summaryinfo

A vulnerability marked as problematic has been reported in edge22 GenerateBlocks Plugin up to 2.2.1 on WordPress. This vulnerability affects the function get_safe_user_meta_keys. This manipulation of the argument linkMetaFieldType causes cross site scripting. This vulnerability appears as CVE-2026-9756. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in edge22 GenerateBlocks Plugin up to 2.2.1 on WordPress. Affected by this vulnerability is the function get_safe_user_meta_keys. The manipulation of the argument linkMetaFieldType with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

The GenerateBlocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Headline Block 'linkMetaFieldType' Dynamic Link Attribute in all versions up to, and including, 2.2.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. A contributor-level attacker can store a JavaScript payload in their own profile description (allowlisted by get_safe_user_meta_keys()) and prepend 'javascript:' via the linkMetaFieldType attribute, creating a fully attacker-controlled href that executes when any user, including an administrator, clicks the rendered headline link.

The weakness was presented by Kirasec. The advisory is shared at wordfence.com. This vulnerability is known as CVE-2026-9756 since 05/27/2026. The exploitation appears to be easy. The attack can be launched remotely. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

Upgrading to version 2.2.0 eliminates this vulnerability.

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Productinfo

Type

• WordPress Plugin

Vendor

• edge22

Name

• GenerateBlocks Plugin

Version

• 2.2.0
• 2.2.1

CPE 2.3info

• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒

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