Administrator-browser script execution via unescaped field name
Published Jun 8, 2026 · Updated Jun 8, 2026
Stored XSS in WP24 Domain Check 1.6.2 allows remote authenticated users to execute JavaScript in an administrator's browser. The advanced settings handler stores wp24_domaincheck[fieldnameDomain] through options.php and later renders the value without neutralizing attribute-breaking input. The published request uses an administrator session, and the event-handler payload runs when the settings field receives focus, exposing data available to that browser context.
Summary
What happened
Stored XSS in WP24 Domain Check 1.6.2 allows remote authenticated users to execute JavaScript in an administrator's browser. The advanced settings handler stores wp24_domaincheck[fieldnameDomain] through options.php and later renders the value without neutralizing attribute-breaking input. The published request uses an administrator session, and the event-handler payload runs when the settings field receives focus, exposing data available to that browser context.
The record
- CVE
- CVE-2021-47984
- Published
- Jun 8, 2026
- Updated
- Jun 8, 2026
- Vendor
- WP24
- Product
- WP24 Domain Check
- Classifications
- CWE-79, T1203
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 8, 2026CVE publishedPublication date reported by the CVE source.
- Jun 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=1.6.2
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
- Exploit Database 49377 WP24 Domain Check Stored XSSproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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