Stored XSS via login message setting
Published Aug 16, 2026 · Updated Aug 16, 2026
Stored XSS in Weblizar Admin Custom Login through 3.6.4 allows remote authenticated users to inject script via login-form settings. Wordfence identifies the affected field as the Message Above Login Form setting; the plugin stores that value and later renders it on the login page without sufficient sanitization or output escaping. Exploitation requires administrator-level access and affects multisite deployments or sites where unfiltered_html is disabled, after which injected JavaScript runs in other users' browsers when the login page is viewed.
Summary
What happened
Stored XSS in Weblizar Admin Custom Login through 3.6.4 allows remote authenticated users to inject script via login-form settings. Wordfence identifies the affected field as the Message Above Login Form setting; the plugin stores that value and later renders it on the login page without sufficient sanitization or output escaping. Exploitation requires administrator-level access and affects multisite deployments or sites where unfiltered_html is disabled, after which injected JavaScript runs in other users' browsers when the login page is viewed.
The record
- CVE
- CVE-2026-2487
- Published
- Aug 16, 2026
- Updated
- Aug 16, 2026
- Vendor
- Weblizar
- Product
- Admin Custom Login
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Aug 16, 2026CVE publishedPublication date reported by the CVE source.
- Aug 16, 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 <=3.6.4
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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