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CVE-2026-19861mediumCWE-79

JetFormBuilder < 3.6.5.2 - Unauthenticated Stored XSS via WYSIWYG Field in Notification Emails

33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 4.7epss 0.2%
exploitation probability
0.2%top 94% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.