Quttera ThreatSign – Web Malware Scanner for WordPress vulnerabilities
Plugin slug quttera-web-malware-scanner · 4 known vulnerabilities · latest disclosed 2026-11-06 · WordPress.org page
Every listed vulnerability has a fix. Version 4.1.0.49 or later is not affected by any of them. If your site runs an older version, update it.
1 of 4 rated high or critical (CVSS 7 or more).
Known vulnerabilities in Quttera ThreatSign – Web Malware Scanner for WordPress
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| High 7.2 | <= 4.1.0.48 | 4.1.0.49 | CVE-2026-115548 | 2026-11-06 | Advisory |
| Low 3.8 | <= 3.5.1.41 | 3.5.2.1 | CVE-2025-8013 | 2025-08-14 | Advisory |
| Medium 5.3 | <= 3.4.1.48 | 3.4.2.1 | CVE-2023-6065 | 2023-11-21 | Advisory |
| Medium 6.8 | <= 3.4.1.48 | 3.4.2.1 | CVE-2023-6222 | 2023-11-21 | Advisory |
Check if a site is affected
Enter a site address to see which version of Quttera ThreatSign – Web Malware Scanner for WordPress and other plugins it runs, and whether they match a known vulnerability.
Questions
Is the Quttera ThreatSign – Web Malware Scanner for WordPress plugin safe to use?
All 4 known issues are fixed in current versions (4.1.0.49 or later). Keeping it updated is what matters.
How do I check which version of Quttera ThreatSign – Web Malware Scanner for WordPress my site runs?
In WordPress go to Plugins > Installed Plugins. From the outside, the free PluginPeek scan below reads the version from the site's public files.
How do I fix a vulnerable plugin?
Make a full backup, then update it from Dashboard > Updates and check the site afterwards. If you would rather not, we can do it for a fixed $99, paid after you have checked the site.