CVE-2026-15758: CWE-200 Exposure of Sensitive Information to an Unauthorized Actor in iberezansky 3D FlipBook – PDF Embedder, PDF Flipbook Viewer, Flipbook Image Gallery
The 3D FlipBook WordPress plugin versions up to 1.16.20 have a vulnerability allowing unauthenticated attackers to access sensitive information. Attackers can exploit the 'id' parameter to retrieve full metadata of password-protected flipbooks, including titles, outlines, properties, and the serialized data containing direct URLs to the underlying PDF files. This bypasses WordPress post-password protections. Additionally, flipbook post IDs can be enumerated without authentication via an AJAX action, enabling targeted data extraction.
AI Analysis
Technical Summary
CVE-2026-15758 describes a sensitive information exposure vulnerability (CWE-200) in the 3D FlipBook – PDF Embedder, PDF Flipbook Viewer, Flipbook Image Gallery WordPress plugin. Versions up to and including 1.16.20 are affected. The vulnerability arises from improper access controls on the 'id' parameter and the fb3d_send_posts AJAX action, which allow unauthenticated attackers to enumerate flipbook post IDs and extract sensitive metadata and direct PDF URLs from password-protected flipbooks, bypassing intended confidentiality protections.
Potential Impact
An unauthenticated attacker can obtain sensitive metadata and direct URLs to PDF files of password-protected flipbooks, violating confidentiality. This exposure does not affect integrity or availability but compromises sensitive content intended to be protected by WordPress post-password mechanisms.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the plugin's AJAX endpoints and consider disabling the plugin if sensitive flipbooks are hosted. Monitor vendor communications for official patches or updates.
CVE-2026-15758: CWE-200 Exposure of Sensitive Information to an Unauthorized Actor in iberezansky 3D FlipBook – PDF Embedder, PDF Flipbook Viewer, Flipbook Image Gallery
Description
The 3D FlipBook WordPress plugin versions up to 1.16.20 have a vulnerability allowing unauthenticated attackers to access sensitive information. Attackers can exploit the 'id' parameter to retrieve full metadata of password-protected flipbooks, including titles, outlines, properties, and the serialized data containing direct URLs to the underlying PDF files. This bypasses WordPress post-password protections. Additionally, flipbook post IDs can be enumerated without authentication via an AJAX action, enabling targeted data extraction.
CVSS v3.1
Score 5.3medium
Affected software
iberezansky
3D FlipBook – PDF Embedder, PDF Flipbook Viewer, Flipbook Image Gallery
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-15758 describes a sensitive information exposure vulnerability (CWE-200) in the 3D FlipBook – PDF Embedder, PDF Flipbook Viewer, Flipbook Image Gallery WordPress plugin. Versions up to and including 1.16.20 are affected. The vulnerability arises from improper access controls on the 'id' parameter and the fb3d_send_posts AJAX action, which allow unauthenticated attackers to enumerate flipbook post IDs and extract sensitive metadata and direct PDF URLs from password-protected flipbooks, bypassing intended confidentiality protections.
Potential Impact
An unauthenticated attacker can obtain sensitive metadata and direct URLs to PDF files of password-protected flipbooks, violating confidentiality. This exposure does not affect integrity or availability but compromises sensitive content intended to be protected by WordPress post-password mechanisms.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the plugin's AJAX endpoints and consider disabling the plugin if sensitive flipbooks are hosted. Monitor vendor communications for official patches or updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-07-14T16:37:00.739Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aa8d86255bf5e2cf535b5cc
Added to database: 09/15/2026, 05:32:18 UTC
Last enriched: 09/15/2026, 05:46:31 UTC
Last updated: 09/15/2026, 09:30:12 UTC
Views: 8
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