Stored XSS via unescaped Custom Field setting
Published Nov 28, 2022 · Updated Apr 25, 2025
Stored XSS in Sutherland Boswell Video Thumbnails 2.12.3 and earlier allows remote authenticated users to inject scripts through plugin settings. The Custom Field setting stores an attribute-breaking value without sanitizing it or escaping it when the settings page rebuilds the input element. Administrator-level access is required, and a viewer must revisit the settings page and interact with the poisoned field to execute the script.
Summary
What happened
Stored XSS in Sutherland Boswell Video Thumbnails 2.12.3 and earlier allows remote authenticated users to inject scripts through plugin settings. The Custom Field setting stores an attribute-breaking value without sanitizing it or escaping it when the settings page rebuilds the input element. Administrator-level access is required, and a viewer must revisit the settings page and interact with the poisoned field to execute the script.
The record
- CVE
- CVE-2022-3828
- Published
- Nov 28, 2022
- Updated
- Apr 25, 2025
- Vendor
- Sutherland Boswell
- Product
- Video Thumbnails
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Nov 28, 2022CVE publishedPublication date reported by the CVE source.
- Apr 25, 2025Record 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 <=2.12.3
What conditions does exploitation require?
What is affected?
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
- Custom Field settings stored-XSS proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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