CVE-2026-2569CWE-79

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

Medium · published March 10, 2026

CVSS v3.1
6.4
EPSS
0%
Percentile
18.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00271 · 18.3th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-03-10T23:21Z
EPSS history
Timeline
  • 10 MAR 23:21Z
    Dear Flipbook <= 2.4.20 - Authenticated (Auhtor+) Stored Cross-Site Scripting via PDF Page Labels
    cvelistv5