Every CVE Search/ Get API key

CVE-2026-121977

JetFormBuilder <= 3.6.8 - Unauthenticated Stored Cross-Site Scripting via Dynamic Value Block `to_set` Property

5.4 Medium

The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'note (form field whose value is written to post meta note)' parameter in all versions up to, and including, 3.6.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires a privileged user with the edit_others_posts capability to visit a form URL containing the attacker-created post ID, a delivery step the attacker controls via a crafted phishing link.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

What each source reports

CVE List Score used 5.4

JetFormBuilder <= 3.6.8 - Unauthenticated Stored Cross-Site Scripting via Dynamic Value Block `to_set` Property

The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'note (form field whose value is written to post meta note)' parameter in all versions up to, and including, 3.6.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires a privileged user with the edit_others_posts capability to visit a form URL containing the attacker-created post ID, a delivery step the attacker controls via a crafted phishing link.

Record
CVE-2026-121977
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-07
EUVDEUVD-2026-119166 5.4

The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'note (form field whose value is written to post meta note)' parameter in all versions up to, and including, 3.6.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires a privileged user with the edit_others_posts capability to visit a form URL containing the attacker-created post ID, a delivery step the attacker controls via a crafted phishing link.

Record
EUVD-2026-119166
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Updated
2026-11-07
GitHub AdvisoriesGHSA-3cp8-88h9-2m3w 5.4

The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to Stored...

The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'note (form field whose value is written to post meta note)' parameter in all versions up to, and including, 3.6.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires a privileged user with the edit_others_posts capability to visit a form URL containing the attacker-created post ID, a delivery step the attacker controls via a crafted phishing link.

Record
GHSA-3cp8-88h9-2m3w
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-07
NVD 5.4

The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'note (form field whose value is written to post meta note)' parameter in all versions up to, and including, 3.6.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires a privileged user with the edit_others_posts capability to visit a form URL containing the attacker-created post ID, a delivery step the attacker controls via a crafted phishing link.

Record
CVE-2026-121977
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-07

Affected products

History

History
RecordedChangedSources
publishedEUVD
publishedEUVD, NVD
aliases, referencesGitHub Advisories
cwes, severity, titleCVE List
first indexedEUVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-121977 is a medium vulnerability (CVSS 5.4) in Jetmonsters Jetformbuilder — Dynamic Blocks Form Builder, published November 7, 2026. No source lists public exploit code. No source names a fixed version.

References

MoveEnter Open