CVE-2026-120509
Real Testimonials <= 4.1.0 - Unauthenticated Stored Cross-Site Scripting via 'tpro_client_name' Parameter
Description
The Real Testimonials – Testimonial Slider, Collect Customer Reviews and Video Testimonials plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'tpro_client_name' parameter in all versions up to, and including, 4.1.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires an administrator to publish the submitted testimonial, trigger the Show Preview AJAX handler, and save an Update, which canonicalizes and persists the attacker-controlled payload as the Manage View title — matching the plugin's standard moderation workflow. Successful exploitation additionally requires an action by an administrator — the attacker cannot trigger the vulnerability on their own.
INFO
Published Date :
Nov. 7, 2026, 12:17 p.m.
Last Modified :
Nov. 7, 2026, 12:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the Real Testimonials plugin to the latest version.
- Apply necessary input sanitization and output escaping.
- Validate all user-supplied data.
- Regularly review plugin security practices.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-120509.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-120509 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-120509
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-120509 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-120509 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Nov. 07, 2026
Action Type Old Value New Value Added Description The Real Testimonials – Testimonial Slider, Collect Customer Reviews and Video Testimonials plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'tpro_client_name' parameter in all versions up to, and including, 4.1.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires an administrator to publish the submitted testimonial, trigger the Show Preview AJAX handler, and save an Update, which canonicalizes and persists the attacker-controlled payload as the Manage View title — matching the plugin's standard moderation workflow. Successful exploitation additionally requires an action by an administrator — the attacker cannot trigger the vulnerability on their own. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N Added CWE CWE-79 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/120xxx/CVE-2026-120509.json">CVE-2026-120509</a> Added Reference https://plugins.trac.wordpress.org/browser/testimonial-free/tags/4.1.0/src/Admin/Views/Framework/Classes/metabox.class.php#L497 Added Reference https://plugins.trac.wordpress.org/browser/testimonial-free/tags/4.1.0/src/Admin/Views/Framework/Classes/metabox.class.php#L549 Added Reference https://plugins.trac.wordpress.org/browser/testimonial-free/tags/4.1.0/src/Frontend/Helper.php#L376 Added Reference https://plugins.trac.wordpress.org/browser/testimonial-free/tags/4.1.0/src/Frontend/Views/partials/submit-form.php#L19 Added Reference https://plugins.trac.wordpress.org/changeset/3781836/testimonial-free Added Reference https://plugins.trac.wordpress.org/changeset/3781836/testimonial-free/trunk/src/Frontend/Helper.php Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/f3c52521-763b-4618-8d8f-fc1f49554be2?source=cve