CVE-2026-18404: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in quadlayers Social Chat – Click To Chat App Button
The Social Chat – Click To Chat App Button plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'consent_message' JSON Attribute in .qlwapp data-box in all versions up to, and including, 8.6.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The exploit requires no user interaction beyond page load, as setting auto_open and consent_enabled to 'yes' in the injected data-box JSON causes the consent box — and the embedded script — to execute immediately on page load.
CVE-2026-18404: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in quadlayers Social Chat – Click To Chat App Button
Description
The Social Chat – Click To Chat App Button plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'consent_message' JSON Attribute in .qlwapp data-box in all versions up to, and including, 8.6.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The exploit requires no user interaction beyond page load, as setting auto_open and consent_enabled to 'yes' in the injected data-box JSON causes the consent box — and the embedded script — to execute immediately on page load.
CVSS v3.1
Score 6.4medium
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-07-30T15:54:28.110Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a9baaa6acd9273b49623801
Added to database: 09/05/2026, 05:37:42 UTC
Last updated: 09/05/2026, 06:22:26 UTC
Views: 2
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