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TI-2026-16107 Aliases CVE-2026-19862GHSA-9qrj-jm5v-82p9

JetFormBuilder < 3.6.5.2 - Unauthenticated Email Header Injection via Send Email Action

Priority LOW 22CWE-93Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00243 15th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed JetFormBuilder (Unknown): 3.6.5.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownJetFormBuilderbefore 3.6.5.23.6.5.2Patch availableCNA
  • JetFormBuilder VendorUnknown Affected before 3.6.5.2 Fixed in 3.6.5.2 Patch available CNA

Remediation

  • Fix · CNA JetFormBuilder (Unknown) Fixed in 3.6.5.2

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    JetFormBuilder 3.6.5.2

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-16104 JetFormBuilder < 3.6.5.2 - Unauthenticated Arbitrary Shortcode Execution via 'status' ParameterPriority LOW 35
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-19862
  2. 2026-10-03 Alias added: GHSA-9qrj-jm5v-82p9

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences