CVE-2026-77009
Authenticated users can execute arbitrary PHP via WatchMan-Site7 debug console (RCE).
Is CVE-2026-77009 being exploited?
Not confirmed. CVE-2026-77009 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-2026-77009?
CVE-2026-77009 is rated Critical with a CVSS score of 9.9. 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-2026-77009?
Yes. A fix has been recorded for CVE-2026-77009. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-77009 affect?
CVE-2026-77009 affects WatchMan-Site7 WordPress plugin <= 4.2.0, WordPress sites with the plugin installed. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-77009?
Update plugin to patched version or remove it; restrict debug/admin access.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated low-privilege users (e.g., subscriber) can execute arbitrary PHP, enabling remote code execution, full server compromise and data theft.
Immediate action required
- affected>= 3.1.1 and <= 4.2.0
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.