CVE-2026-72778
Authenticated remote code execution in Craft CMS control panel via crafted condition JSON.
Is CVE-2026-72778 being exploited?
Not confirmed. CVE-2026-72778 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 0.45% probability of exploitation in the next 30 days.
How severe is CVE-2026-72778?
CVE-2026-72778 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-2026-72778?
Yes. A fix has been recorded for CVE-2026-72778. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-72778 affect?
CVE-2026-72778 affects Craft CMS >=4.0.0-RC1 and <4.18.2, Craft CMS >=5.0.0-RC1 and <5.10.6. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-72778?
Upgrade to Craft CMS 4.18.2 or 5.10.6+, restrict control-panel access, rotate creds
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated attacker with control-panel access and CSRF token can execute OS commands as the PHP/web user via condition.config JSON decoding.
Immediate action required
- affected>= 5.0.0-RC1 and < 5.10.6
- affected>= 4.0.0-RC1 and < 4.18.2
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.