Vulnerability Description
The Quttera ThreatSign – Web Malware Scanner for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'HTTP_USER_AGENT' parameter in all versions up to, and including, 4.1.0.48 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever an administrator accesses an injected page.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/quttera-web-malware-scanner/tags/4.1.
- https://plugins.trac.wordpress.org/browser/quttera-web-malware-scanner/tags/4.1.
- https://plugins.trac.wordpress.org/browser/quttera-web-malware-scanner/tags/4.1.
- https://plugins.trac.wordpress.org/browser/quttera-web-malware-scanner/tags/4.1.
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3771915%40quttera-web
- https://www.wordfence.com/threat-intel/vulnerabilities/id/eacc5af0-3248-4819-b90
FAQ
What is CVE-2026-115548?
CVE-2026-115548 is a vulnerability with a CVSS score of 7.2 (HIGH). The Quttera ThreatSign – Web Malware Scanner for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'HTTP_USER_AGENT' parameter in all versions up to, and including, 4...
How severe is CVE-2026-115548?
CVE-2026-115548 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-115548?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.