CVE-2026-84253
Unauthenticated REST flaw in click5 CRM add-on allows WordPress site takeover.
Is CVE-2026-84253 being exploited?
Not confirmed. CVE-2026-84253 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 0.18% probability of exploitation in the next 30 days.
How severe is CVE-2026-84253?
CVE-2026-84253 is rated Critical with a CVSS score of 9.8. 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-2026-84253?
Not known from our data. No patch reference has been recorded for CVE-2026-84253, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-84253 affect?
CVE-2026-84253 affects WordPress sites, Gravity Forms plugin integrations, click5 CRM add-on (<= 1.0.3), Sites exposing REST API (/wp-json). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-84253?
Remove/disable plugin or block REST endpoint; apply vendor patch when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated attackers can modify options via REST, create admin accounts, and gain full site control.
Immediate action required
- affected<= 1.0.3
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.