Dear Flipbook <= 2.4.20 - Authenticated (Auhtor+) Stored Cross-Site Scripting via PDF Page Labels

6.4
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2026-2569
CVSS 6.4 (Medium)
Publicly Published March 10, 2026
Last Updated March 10, 2026
Researcher Drew Webber (mcdruid)

Description

The Dear Flipbook – PDF Flipbook, 3D Flipbook, PDF embed, PDF viewer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via PDF page labels in all versions up to, and including, 2.4.20 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.

References

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Vulnerability Details for DearFlip – PDF Flipbook, 3D Flipbook, PDF embed, PDF viewer

Software Type Plugin
Software Slug 3d-flipbook-dflip-lite (view on wordpress.org)
Patched? Yes
Remediation Update to version 2.4.27, or a newer patched version
Affected Version
  • <= 2.4.20
Patched Version
  • 2.4.27

Recent vulnerabilities in DearFlip – PDF Flipbook, 3D Flipbook, PDF embed, PDF viewer

# Title CVE ID CVSS Researchers Date
1 DearFlip – PDF Flipbook, 3D Flipbook, PDF embed, PDF viewer <= 2.4.29 - Missing Authorization CVE-2026-49047 4.3 timomangcut May 27, 2026
2 Dear Flipbook – PDF Flipbook, 3D Flipbook, PDF embed, PDF viewer <= 2.3.65 - DOM-Based Reflected Cross-Site Scripting via 'pdf-source' CVE-2025-5314 6.1 Martin Herancourt June 30, 2025
3 Dear Flipbook – PDF Flipbook, 3D Flipbook, PDF embed, PDF viewer <= 2.3.52 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2024-11830 6.4 Nguyen Vuong Quoc January 7, 2025
4 PDF Flipbook, 3D Flipbook, PDF embed, PDF viewer – DearFlip <= 2.3.32 - Reflected Cross-Site Scripting CVE-2024-8717 6.1 Noah Stead (TurtleBurg) October 23, 2024
5 PDF.js < 4.2.67 - Arbitrary JavaScript Execution CVE-2024-4367 6.4 Colin Xu, James Myers (ConfidenceRemainsHigh), Codean Labs May 20, 2024
6 DearFlip <= 2.2.26 - Authenticated (Contributor+) Stored Cross-Site Scripting via force_fit CVE-2024-29807 6.4 emad March 25, 2024
7 PDF Flipbook, 3D Flipbook – DearFlip <= 2.2.26 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2024-0895 5.4 Muhammad Daffa February 2, 2024
8 PDF Flipbook, 3D Flipbook WordPress – DearFlip Lite <= 1.7.12 - Contributor+ Stored Cross-Site Scripting CVE-2021-24732 6.4 apple502j September 15, 2021

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