Calculated Fields Form <= 5.4.5.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Form Settings
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| codepeople | Calculated Fields Form | up to 5.4.5.0 | — | No fix listed | CNA |
- Calculated Fields Form Vendorcodepeople Affected up to 5.4.5.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-3986
- 2026-10-03 Alias added: GHSA-2x88-jf9m-g87v
References
Other 5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d650261a-ec0a-4538-ad59-0589712702fa?source=cve
- https://plugins.trac.wordpress.org/browser/calculated-fields-form/tags/5.4.4.5/cp_calculatedfieldsf_free.php#L131
- https://plugins.trac.wordpress.org/browser/calculated-fields-form/trunk/cp_calculatedfieldsf_free.php#L131
- https://plugins.trac.wordpress.org/browser/calculated-fields-form/tags/5.4.4.5/inc/cpcff_form.inc.php#L326
- https://plugins.trac.wordpress.org/browser/calculated-fields-form/tags/5.4.4.5/inc/cpcff_page_builders.inc.php#L41
More codepeople vulnerabilities
- TI-2024-00790 Booking Calendar < 1.3.83 - CSRF appointment scheduling CVSS 3.1HIGH 8.8
- TI-2024-11385 BookingPress < 1.1.23 - Unauthenticated Export File Download CVSS 3.1HIGH 7.5
- TI-2024-03387 Smart Image Gallery < 1.0.19 - Update/Delete Google API Key via CSRF CVSS 3.1MEDIUM 6.8
- TI-2023-05486 Contact Form Email < 1.3.44 - Editor+ Stored Cross-Site Scripting CVSS 3.1MEDIUM 6.1
- TI-2024-08220 Polls CP <= 1.0.75 - Admin+ Stored XSS via Custom Styles CVSS 3.1MEDIUM 5.4
- TI-2024-08217 Polls CP <= 1.0.75 - Admin+ Stored Cross-Site Scripting CVSS 3.1MEDIUM 5.4
Sources
- CVE-2026-3986 · CVE Program
- CVE-2026-3986 · NVD
- FIRST EPSS
- GHSA-2x88-jf9m-g87v · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences