CVE-2026-5427 — Arbitrary File Access
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CVE-2026-5427 — The Kubio plugin for WordPress is vulnerable to Arbitrary File Upload in versions up to and including 2.7.2. This is due to insufficient capability checks in the kubio_rest_pre_insert_import_assets() function, which is hooked to the rest_pre_insert_{post_type} filter for posts, pages
What This Means For You
- If your environment is affected by CWE-862, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-5427 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
8 rules · 6 SIEM formats8 auto-generated detection rules for this incident, mapped to MITRE ATT&CK. Available in Sigma, Splunk SPL, Sentinel KQL, Elastic Lucene, QRadar AQL, and Wazuh.
Credential Abuse from Breached Vendor — CVE-2026-5427
Want this in your SIEM's native format? Get Splunk SPL, Sentinel KQL, Elastic, QRadar AQL, or Wazuh — ready to paste.
8 Sigma rules mapped to the ATT&CK techniques from this breach — pick your SIEM and get a ready-to-paste query.
Get All SIEM Formats →Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-5427 | vulnerability | CVE-2026-5427 |
| CWE-862 | weakness | CWE-862 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | April 17, 2026 at 08:16 UTC |
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