Vulnerability in Spectra Legacy – Gutenberg Blocks — CVE-2026-16302

What to do now

Update Spectra Legacy – Gutenberg Blocks to 2.20.1 or later.

Affected versions

• Everything up to and including 2.20.0

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.

This description is reproduced verbatim from the public vulnerability record.

• https://www.wordfence.com/threat-intel/vulnerabilities/id/eede8a1e-db33-4c07-9991-9def75dddc87?source=api-prod

Part of this record comes from Wordfence Intelligence. Original: https://www.wordfence.com/threat-intel/vulnerabilities/id/eede8a1e-db33-4c07-9991-9def75dddc87
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