Answer in brief
CVE-2026-15758 records a Unknown severity vulnerability in 3D FlipBook <= 1.16.20 - Unauthenticated Sensitive Information Exposure in 'id' Parameter. The current sources do not mark it as known exploited. The current feed maps iberezansky/3D FlipBook – PDF Embedder, PDF Flipbook Viewer, Flipbook Image Gallery (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. 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 iberezansky/3D FlipBook – PDF Embedder, PDF Flipbook Viewer, Flipbook Image Gallery (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| iberezansky/3D FlipBook – PDF Embedder, PDF Flipbook Viewer, Flipbook Image Gallerygeneric | 0 | Not reported |
Published upstream
Sep 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 15, 2026
The 3D FlipBook – PDF Embedder, PDF Flipbook Viewer, Flipbook Image Gallery plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.16.20 via the 'id' parameter. This makes it possible for unauthenticated attackers to extract sensitive data including the full metadata payload of password-protected flipbooks — including title, outline, props, and the serialized data blob containing the underlying PDF file's direct URL — bypassing WordPress post-password confidentiality. Flipbook post IDs can be pre-enumerated via the also-unauthenticated fb3d_send_posts AJAX action, requiring no prior knowledge to target specific flipbooks.
Quoted source text, attributed separately from HOL analysis.