CVE-2026-19861JetFormBuilder < 3.6.5.2 - Unauthenticated Stored XSS via WYSIWYG Field in Notification Emails
Updated under an hour ago ()
Does this affect you?
It affects Unknown JetFormBuilder — Dynamic Blocks Form Builder. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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The JetFormBuilder — Dynamic Blocks Form Builder WordPress plugin before 3.6.5.2 does not properly sanitise and escape a form field's value before including it in the HTML notification emails it sends, allowing unauthenticated users to inject arbitrary HTML into messages delivered to administrators and other recipients. Whether injected script executes depends on the recipient's mail client, but the injected markup is rendered regardless.
- CVSS
- 4.7 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/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
- WPScan
- NVD analysis
- Deferred
- Record last updated
- Sep 6, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Unknown JetFormBuilder — Dynamic Blocks Form Builder unknown:jetformbuilder_dynamic_blocks_form_builder (from the name) | before 3.6.5.2 | CNA record |
References
- https://wpscan.com/vulnerability/c9c834a3-dc65-4972-9315-d4dcc7f26599/exploit, vdb-entry, technical-description
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.