CVE-2026-19862JetFormBuilder < 3.6.5.2 - Unauthenticated Email Header Injection via Send Email Action
Updated under an hour ago ()
Does this affect you?
It affects Unknown JetFormBuilder. 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 WordPress plugin before 3.6.5.2 does not validate or strip line breaks from address values it sources from submitted form fields before adding them to the headers of the e-mails it sends, allowing unauthenticated users to inject arbitrary e-mail headers, add hidden recipients and spoof the sender. Exploitation requires the site to be configured to take one of the message's addresses from a form field.
- CVSS
- 4.8 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
- Weakness (CWE)
- CWE-93
- 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 unknown:jetformbuilder (from the name) | before 3.6.5.2 | CNA record |
References
- https://wpscan.com/vulnerability/b3fe5552-6736-4479-9c61-c05bc3328b8e/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.