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Description

The Calculated Fields Form plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the form settings in all versions up to, and including, 5.4.5.0. This is due to insufficient capability checks on the form settings save handler and insufficient input sanitization of the `fcontent` field in `fhtml` field types. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

PUBLISHED Reserved 2026-03-11 | Published 2026-03-13 | Updated 2026-03-13 | Assigner Wordfence




MEDIUM: 6.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status
unaffected

* (semver)
affected

Timeline

2026-03-11:Vendor Notified
2026-03-12:Disclosed

Credits

Hunter Jensen finder

References

www.wordfence.com/...-ec0a-4538-ad59-0589712702fa?source=cve

plugins.trac.wordpress.org/.../cp_calculatedfieldsf_free.php

plugins.trac.wordpress.org/.../cp_calculatedfieldsf_free.php

plugins.trac.wordpress.org/...5.4.4.5/inc/cpcff_form.inc.php

plugins.trac.wordpress.org/...nc/cpcff_page_builders.inc.php

cve.org (CVE-2026-3986)

nvd.nist.gov (CVE-2026-3986)

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