Vulnerability · Published Mar 10, 2026 · Assigned by Wordfence
CVE-2026-2569Dear Flipbook <= 2.4.20 - Authenticated (Auhtor+) Stored Cross-Site Scripting via PDF Page Labels
Medium 6.4
In plain English
A medium-severity cross-site scripting in Dear Flipbook – PDF Flipbook, 3D Flipbook, PDF embed, PDF viewer from dearhive. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| dearhive | Dear Flipbook – PDF Flipbook, 3D Flipbook, PDF embed, PDF viewer | 0 – through 2.4.20 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N