JetFormBuilder <= 3.6.5.4 - Unauthenticated Stored Cross-Site Scripting via 'choice' Post Meta via Insert/Update Post Action
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'choice' Post Meta via Insert/Update Post Action in all versions up to, and including, 3.6.5.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The injected payload is submitted via the unauthenticated wp_ajax_nopriv_jet_form_builder_submit endpoint, stored verbatim into post meta through the Insert/Update Post action, and later rendered unescaped by the Select Field block template when the get_from_db option generator copies raw meta values into option value attributes and label content.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- jetmonsters JetFormBuilder — Dynamic Blocks Form Builder
through 3.6.5.4
References 7
plugins.trac.wordpress.org
- browser/jetformbuilder/tags/3.6.5.4/modules/option-field/blocks/select/block-template.php#L131
- browser/jetformbuilder/tags/3.6.5.4/includes/form-handler.php#L85
- browser/jetformbuilder/tags/3.6.5.4/includes/classes/tools.php#L574
- browser/jetformbuilder/tags/3.6.5.4/modules/actions-v2/insert-post/properties/post-meta-property.php#L152
- browser/jetformbuilder/tags/3.6.5.4/includes/generators/get-from-db.php#L226