The Dear Flipbook – PDF Flipbook, 3D Flipbook, PDF embed, PDF viewer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'post_content (Custom HTML block inner HTML)' parameter in all versions up to, and including, 2.4.30 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. A Contributor-level attacker can insert a crafted .df-element div with data-df-lightbox='thumb' via a Custom HTML block, whose inner HTML is passed as the title argument to parseThumbs() at render time, enabling both innerHTML injection into a span element and attribute breakout via an onerror handler on a constructed img element.
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Affected Vendors & Products
References
History
Mon, 07 Sep 2026 12:30:00 +0000
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ssvc
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Mon, 07 Sep 2026 08:30:00 +0000
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Dearhive
Dearhive dear Flipbook – Pdf Flipbook, 3d Flipbook, Pdf Embed, Pdf Viewer Wordpress Wordpress wordpress |
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| Vendors & Products |
Dearhive
Dearhive dear Flipbook – Pdf Flipbook, 3d Flipbook, Pdf Embed, Pdf Viewer Wordpress Wordpress wordpress |
Sat, 05 Sep 2026 05:45:00 +0000
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| Description | The Dear Flipbook – PDF Flipbook, 3D Flipbook, PDF embed, PDF viewer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'post_content (Custom HTML block inner HTML)' parameter in all versions up to, and including, 2.4.30 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. A Contributor-level attacker can insert a crafted .df-element div with data-df-lightbox='thumb' via a Custom HTML block, whose inner HTML is passed as the title argument to parseThumbs() at render time, enabling both innerHTML injection into a span element and attribute breakout via an onerror handler on a constructed img element. | |
| Title | Dear Flipbook <= 2.4.30 - Authenticated (Contributor+) Stored Cross-Site Scripting via '.df-element' Element Inner HTML | |
| Weaknesses | CWE-79 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Wordfence
Published: 2026-09-05T05:30:55.495Z
Updated: 2026-09-07T11:17:26.484Z
Reserved: 2026-05-14T18:43:33.122Z
Link: CVE-2026-8625
Updated: 2026-09-07T11:15:04.996Z
Status : Deferred
Published: 2026-09-05T06:17:10.690
Modified: 2026-09-08T13:12:58.310
Link: CVE-2026-8625
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