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Description

The WPBookit plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'css_code' parameter in all versions up to, and including, 1.0.6 due to a missing capability check on the save_custome_code() function. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

PUBLISHED Reserved 2025-10-23 | Published 2025-11-21 | Updated 2025-11-24 | Assigner Wordfence




HIGH: 7.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status
unaffected

* (semver)
affected

Timeline

2025-10-23:Vendor Notified
2025-11-20:Disclosed

Credits

Ryan Kozak finder

References

www.wordfence.com/...-c4f7-4611-a22a-685d4421a4ab?source=cve

plugins.trac.wordpress.org/...s.wpb-admin-routes-handler.php

plugins.trac.wordpress.org/...ses/class.wpb-admin-routes.php

plugins.trac.wordpress.org/...ass.wpb-setting-controller.php

github.com/d0n601/CVE-2025-12135

ryankozak.com/posts/cve-2025-12135/

plugins.trac.wordpress.org/...wpbookit&sfp_email=&sfph_mail=

cve.org (CVE-2025-12135)

nvd.nist.gov (CVE-2025-12135)

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