CVE-2026-8625 json
Dear Flipbook <= 2.4.30 - Authenticated (Contributor+) Stored Cross-Site Scripting via '.df-element' Element Inner HTML
published 2026-09-05 2 mo ago modified 2026-09-08 2 mo ago also EUVD-2026-71841
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 29%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected products
- dearhive DearFlip – PDF Flipbook, 3D Flipbook, PDF embed, PDF viewer
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/741150a3-1b2a-4b54-9dd5-992d3d7079dc?source=cve
- plugins.trac.wordpress.org /browser/3d-flipbook-dflip-lite/tags/2.4.27/assets/js/dflip.js#L2712
- plugins.trac.wordpress.org /browser/3d-flipbook-dflip-lite/tags/2.4.27/assets/js/dflip.js#L2718
- plugins.trac.wordpress.org /browser/3d-flipbook-dflip-lite/tags/2.4.27/assets/js/dflip.js#L2791
- plugins.trac.wordpress.org /browser/3d-flipbook-dflip-lite/tags/2.4.27/assets/js/dflip.js#L2796
- plugins.trac.wordpress.org /changeset?reponame=&new=3641463%403d-flipbook-dflip-lite%2Ftags%2F2.4.37&old=3557511%403d-flipbook-dflip-lite
- plugins.trac.wordpress.org /changeset/3641463/3d-flipbook-dflip-lite/trunk/assets/js/dflip.js
- plugins.trac.wordpress.org /changeset?old_path=%2F3d-flipbook-dflip-lite/tags/2.4.30&new_path=%2F3d-flipbook-dflip-lite/tags/2.4.37
Sources
- CVE List CVE-2026-8625
- NVD CVE-2026-8625
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.