Brainstormforce Spectra Legacy – Gutenberg Blocks vulnerabilities

2 CVEs affecting Brainstormforce Spectra Legacy – Gutenberg Blocks, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-16302, published 2026-09-24.

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Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2026-12900, published 2026-07-20. Medium severity, CVSS 6.4. EPSS: 0.3% chance of exploitation in the next 30 days. The Spectra Gutenberg Blocks – Website Builder for the Block Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `uagb/image` block in all versions up to, and including,…
• CVE-2026-16302, published 2026-09-24. Medium severity, CVSS 4.3. EPSS: 0.2% chance of exploitation in the next 30 days. The Spectra Legacy – Gutenberg Blocks plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.20.0 via the editor_assets function, which exposes…