CVE-2026-66593
Unauthenticated SQL injection in CleanTalk Security & Malware scan plugin (<=2.184).
Is CVE-2026-66593 being exploited?
Not confirmed. CVE-2026-66593 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.29% probability of exploitation in the next 30 days.
How severe is CVE-2026-66593?
CVE-2026-66593 is rated Critical with a CVSS score of 9.3. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-66593?
Yes. A fix has been recorded for CVE-2026-66593. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-66593 affect?
CVE-2026-66593 affects WordPress plugin: Security & Malware Scan by CleanTalk <=2.184, WordPress sites using that plugin, Sites with web-facing databases (e.g., MySQL). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-66593?
Upgrade plugin to latest version, audit DB/logs, rotate credentials.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated SQLi lets remote attackers read/modify site DB, exfiltrate credentials, create/modify accounts and enable site takeover.
Immediate action required
- affected<= 2.184
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.