Answer in brief
CVE-2026-16302 records a Medium severity (CVSS 4.3) vulnerability in Spectra Legacy – Gutenberg Blocks <= 2.20.0 - Authenticated (Contributor+) Sensitive Information Exposure. The current sources do not mark it as known exploited. The current feed maps brainstormforce/Spectra Legacy – Gutenberg Blocks (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 4.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps brainstormforce/Spectra Legacy – Gutenberg Blocks (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| brainstormforce/Spectra Legacy – Gutenberg Blocksgeneric | >=0 <=2.20.0 | Not reported |
Published upstream
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 24, 2026
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.
Quoted source text, attributed separately from HOL analysis.