The Strong Testimonials plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'lightbox_class' Shortcode Attribute in all versions up to, and including, 3.3.8 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. Exploitation requires that the targeted testimonial view has at least one published testimonial with a featured image and the lightbox wrapper enabled, as the vulnerable code path is only reached when a thumbnail is rendered.
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Affected Vendors & Products
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Fixes
Solution
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Workaround
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References
History
Fri, 18 Sep 2026 07:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The Strong Testimonials plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'lightbox_class' Shortcode Attribute in all versions up to, and including, 3.3.8 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. Exploitation requires that the targeted testimonial view has at least one published testimonial with a featured image and the lightbox wrapper enabled, as the vulnerable code path is only reached when a thumbnail is rendered. | |
| Title | Strong Testimonials <= 3.3.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'lightbox_class' Shortcode Attribute | |
| Weaknesses | CWE-79 | |
| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: Wordfence
Published:
Updated: 2026-09-18T07:40:00.882Z
Reserved: 2026-09-16T14:58:54.869Z
Link: CVE-2026-92622
No data.
Status : Deferred
Published: 2026-09-18T08:17:02.377
Modified: 2026-09-18T13:23:37.403
Link: CVE-2026-92622
No data.
OpenCVE Enrichment
No data.
Weaknesses