CVE-2026-19859: CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') in JetFormBuilder
The JetFormBuilder WordPress plugin before 3.6.5.2 does not sanitize a request parameter before rendering it as message content, allowing unauthenticated users to execute arbitrary shortcodes registered on the site on any page displaying a form. Escaping is applied to that content before a later shortcode-expansion pass rather than after it, so the escaping can be bypassed.
CVE-2026-19859: CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') in JetFormBuilder
Description
The JetFormBuilder WordPress plugin before 3.6.5.2 does not sanitize a request parameter before rendering it as message content, allowing unauthenticated users to execute arbitrary shortcodes registered on the site on any page displaying a form. Escaping is applied to that content before a later shortcode-expansion pass rather than after it, so the escaping can be bypassed.
CVSS v3.1
Score 6.5medium
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-08-14T10:00:54.150Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a9d346bacd9273b498d31c0
Added to database: 09/06/2026, 09:37:47 UTC
Last updated: 09/06/2026, 09:37:47 UTC
Views: 1
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