CVE-2026-15098Real 3D Flipbook <= 5.1.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'lightboxtext' Shortcode Attribute
Updated under an hour ago ()
Does this affect you?
It affects creativeinteractivemedia Real3D Flipbook – 3D FlipBook, PDF FlipBook, PDF Viewer, PDF Embedder. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
The Real3D Flipbook Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'lightboxtext' shortcode attribute (and other unsanitized attributes handled by on_shortcode()) in versions up to, and including, 5.1.1. This is due to insufficient input sanitization and output escaping in the on_shortcode() and print_global_options() functions: shortcode attribute values are copied verbatim into $this->flipbook_options and then emitted via wp_json_encode() inside a <script type="application/json"> block without the JSON_HEX_TAG flag, allowing a literal </script> byte sequence in the attribute value to break out of the JSON script context. Because WordPress's shortcode_parse_atts() applies stripcslashes() to attribute values, an attacker can encode the breakout tag as \x3c/script\x3e\x3cscript\x3e…\x3c/script\x3e, which survives the wp_kses_post save-time filter applied to Contributor content (the escape bytes are safe text characters, not HTML tags) and is decoded to real angle brackets at render time. 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 (typically an Editor or Administrator previewing/moderating the pending post) accesses an injected page.
- CVSS
- 6.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Wordfence
- NVD analysis
- Deferred
- Record last updated
- Sep 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
creativeinteractivemedia Real3D Flipbook – 3D FlipBook, PDF FlipBook, PDF Viewer, PDF Embedder creativeinteractivemedia:real3d_flipbook_3d_flipbook_pdf_flipbook_pdf_viewer_pdf_embedder (from the name) | through 5.1.1 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/f6df3abe-ef27-46d7-bbdd-abd994fce132?source=cve
- https://plugins.trac.wordpress.org/browser/real3d-flipbook-lite/tags/5.0/includes/Real3DFlipbook.php#L1668
- https://plugins.trac.wordpress.org/browser/real3d-flipbook-lite/tags/5.0/includes/Real3DFlipbook.php#L1468
- https://plugins.trac.wordpress.org/browser/real3d-flipbook-lite/tags/5.0/includes/Real3DFlipbook.php#L1224
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3643539%40real3d-flipbook-lite&new=3643539%40real3d-flipbook-lite
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.