uniquecodergmailcom Pinterest Site Verification plugin using Meta Tag up to 1.8 on WordPress post_var cross site scripting

Summaryinfo

A vulnerability described as problematic has been identified in uniquecodergmailcom Pinterest Site Verification plugin using Meta Tag up to 1.8 on WordPress. The affected element is an unknown function. Executing a manipulation of the argument post_var can lead to cross site scripting. This vulnerability is tracked as CVE-2026-3142. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as problematic was found in uniquecodergmailcom Pinterest Site Verification plugin using Meta Tag up to 1.8 on WordPress. This vulnerability affects an unknown code block. The manipulation of the argument post_var 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. CVE summarizes:

The Pinterest Site Verification plugin using Meta Tag plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'post_var' parameter in versions up to, and including, 1.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The weakness was disclosed by Nabil Irawan. The advisory is shared for download at wordfence.com. This vulnerability was named CVE-2026-3142 since 02/24/2026. The exploitation appears to be easy. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• WordPress Plugin

Vendor

• uniquecodergmailcom

Name

• Pinterest Site Verification plugin using Meta Tag

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion