Is CVE-2026-93755 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-93755 being exploited in the wild.

How severe is CVE-2026-93755?

High severity, with a CVSS score of 7.2, published 7 November 2026.

Which products and versions are affected?

Happyforms up to and including 1.38.9.

Is there a fix for CVE-2026-93755?

Yes: fixed in 1.38.10. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-93755 attacked?

It is attacked over the network.

Am I affected by CVE-2026-93755?

Check whether you run Happyforms at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-93755: Happyforms plugin stored XSS via spoofable client IP headers

CVE-2026-93755 · Severity: high · CVSS 7.2 · Published 2026-11-07

The Happyforms plugin for WordPress, used to create and manage web forms, fails to validate client IP information submitted through requests. An unauthenticated attacker can inject malicious scripts into form submissions that get stored and later executed when administrators review those submissions, potentially leading to administrator account compromise or data theft.

Technologies: Happyforms. Vendors: Happyforms.

Quick answers

Is CVE-2026-93755 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-93755 being exploited in the wild.
How severe is CVE-2026-93755?: High severity, with a CVSS score of 7.2, published 7 November 2026.
Which products and versions are affected?: Happyforms up to and including 1.38.9.
Is there a fix for CVE-2026-93755?: Yes: fixed in 1.38.10. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-93755 attacked?: It is attacked over the network.
Am I affected by CVE-2026-93755?: Check whether you run Happyforms at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: 1.38.10

Technical details

The happyforms_get_client_ip() function reads raw HTTP_CLIENT_IP and HTTP_X_FORWARDED_FOR headers without validation or sanitization, stores them as post metadata via update_post_meta(), and outputs them unescaped in the admin submission details metabox. An unauthenticated attacker can spoof these headers to inject arbitrary JavaScript that executes in the browser context of any administrator viewing the submission.

Affected products

Happyforms Happyforms up to and including 1.38.9

Timeline

2026-11-07: disclosed
2026-11-05: patched

References

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