Stored script execution via unescaped testimonial icon
Published Mar 1, 2025 · Updated Apr 8, 2026
Stored cross-site scripting in the Kadence Blocks testimonial block through 3.4.9 allows remote authenticated users to run scripts in visitor browsers. The server-side testimonial renderer concatenates the icon block attribute directly into an HTML class value without attribute escaping. Contributor-level access is required to store a crafted icon value in a page; the script runs in that page's origin whenever a visitor loads it.
Summary
What happened
Stored cross-site scripting in the Kadence Blocks testimonial block through 3.4.9 allows remote authenticated users to run scripts in visitor browsers. The server-side testimonial renderer concatenates the icon block attribute directly into an HTML class value without attribute escaping. Contributor-level access is required to store a crafted icon value in a page; the script runs in that page's origin whenever a visitor loads it.
The record
- CVE
- CVE-2025-1291
- Published
- Mar 1, 2025
- Updated
- Apr 8, 2026
- Vendor
- Liquid Web
- Product
- Kadence Blocks
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 1, 2025CVE publishedPublication date reported by the CVE source.
- Apr 8, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=3.4.9
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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