wpchill Strong Testimonials Plugin up to 3.2.21 on WordPress Shortcode testimonial_view cross site scripting

Summaryinfo

A vulnerability categorized as problematic has been discovered in wpchill Strong Testimonials Plugin up to 3.2.21 on WordPress. The impacted element is the function testimonial_view of the component Shortcode Handler. Such manipulation leads to cross site scripting. This vulnerability is referenced as CVE-2026-3239. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in wpchill Strong Testimonials Plugin up to 3.2.21 on WordPress and classified as problematic. Affected by this issue is the function testimonial_view of the component Shortcode Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. CVE summarizes:

The Strong Testimonials plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's testimonial_view shortcode in all versions up to, and including, 3.2.21 due to insufficient input sanitization and output escaping on user supplied attributes. 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.

The weakness was published by Ronnachai Sretawat Na Ayutaya. The advisory is shared for download at wordfence.com. This vulnerability is handled as CVE-2026-3239 since 02/26/2026. The exploitation is known to be easy. The attack may be launched 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.

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Productinfo

Type

• WordPress Plugin

Vendor

• wpchill

Name

• Strong Testimonials Plugin

Version

• 3.2.0
• 3.2.1
• 3.2.2
• 3.2.3
• 3.2.4
• 3.2.5
• 3.2.6
• 3.2.7
• 3.2.8
• 3.2.9
• 3.2.10
• 3.2.11
• 3.2.12
• 3.2.13
• 3.2.14
• 3.2.15
• 3.2.16
• 3.2.17
• 3.2.18
• 3.2.19
• 3.2.20
• 3.2.21

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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Exploitinginfo

Threat Intelligenceinfo

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Entryinfo

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