CVE-2026-64852
Grav API plugin privilege escalation lets low-priv users create API keys with admin rights.
Is CVE-2026-64852 being exploited?
Not confirmed. CVE-2026-64852 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 0.39% probability of exploitation in the next 30 days.
How severe is CVE-2026-64852?
CVE-2026-64852 is rated High with a CVSS score of 8.7. 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-2026-64852?
Yes. A fix has been recorded for CVE-2026-64852. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-64852 affect?
CVE-2026-64852 affects Grav CMS API Plugin < 1.0.8, Grav CMS sites using the API plugin. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-64852?
Upgrade API plugin to v1.0.8; revoke suspicious API keys; audit admin/API logs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attacker can create persistent API keys for other accounts and inherit api.super/admin rights, enabling full administrative control via API.
Immediate action required
- affected< 1.0.8
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.