CVE-2026-16302
Spectra Legacy – Gutenberg Blocks <= 2.20.0 - Authenticated (Contributor+) Sensitive Information Exposure
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 the uag_insta_linked_accounts option through the uagb_blocks_info object without a capability check. This makes it possible for authenticated attackers, with Contributor-level access and above, to extract sensitive data including raw Instagram Graph API access tokens configured by an administrator. Exploitation requires the Spectra Pro plugin to be active with a linked Instagram account.
| CWE | CWE-200 |
| Vendor | brainstormforce |
| Product | spectra legacy – gutenberg blocks |
| Published | Sep 24, 2026 |
| Last Updated | Sep 24, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N