CVE-2026-58480
Unauthenticated RCE via arbitrary file upload in Blocksy Companion Pro plugin.
Is CVE-2026-58480 being exploited?
Not confirmed. CVE-2026-58480 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 3.6% probability of exploitation in the next 30 days.
How severe is CVE-2026-58480?
CVE-2026-58480 is rated Critical with a CVSS score of 9.2. 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-2026-58480?
Yes. A fix has been recorded for CVE-2026-58480. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-58480 affect?
CVE-2026-58480 affects Blocksy Companion Pro < 2.1.47, WordPress sites using Blocksy theme/plugin, Web servers executing uploaded PHP. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-58480?
Update to Blocksy Companion Pro >=2.1.47; remove suspicious uploads; restrict PHP execution in uploads
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated remote code execution: attackers can upload double-extension PHP files (e.g., shell.woff2.php) via Advanced Reviews/Custom Fonts to execute arbitrary code.
Immediate action required
- affected<= 2.1.46
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.