Administrator stored XSS via unescaped custom CSS
Published Jun 30, 2026 · Updated Jun 30, 2026
Stored XSS in WPMart Team Members 8.7 and earlier allows remote authenticated users to inject scripts through the custom_css admin setting. The slider form save path stores custom_css without sufficient sanitization, and shortcode.php emits the saved value without context-appropriate escaping. Exploitation requires administrator-level access and is limited to multisite installations or sites where unfiltered_html is disabled; the script runs when a user opens the injected page.
Summary
What happened
Stored XSS in WPMart Team Members 8.7 and earlier allows remote authenticated users to inject scripts through the custom_css admin setting. The slider form save path stores custom_css without sufficient sanitization, and shortcode.php emits the saved value without context-appropriate escaping. Exploitation requires administrator-level access and is limited to multisite installations or sites where unfiltered_html is disabled; the script runs when a user opens the injected page.
The record
- CVE
- CVE-2026-12114
- Published
- Jun 30, 2026
- Updated
- Jun 30, 2026
- Vendor
- WPMart
- Product
- Team Members – Multi Language Supported Team Plugin
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Jun 30, 2026CVE publishedPublication date reported by the CVE source.
- Jun 30, 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?
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- Affected versionversion=0 <=8.7
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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