CVE-2026-115591: Supsystic Contact Form sensitive data exposure in sent data

CVE-2026-115591 · Severity: high · CVSS 7.5 · Published 2026-10-28

Supsystic Contact Form is a WordPress plugin that allows website visitors to submit contact information. This vulnerability causes sensitive data submitted through contact forms to be inadvertently exposed or embedded in outgoing communications, allowing attackers to retrieve passwords, emails, and other private information without authentication.

Technologies: Supsystic Contact Form. Vendors: Supsystic.

Quick answers

Is CVE-2026-115591 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-115591 being exploited in the wild.
How severe is CVE-2026-115591?
High severity, with a CVSS score of 7.5, published 28 October 2026.
Which products and versions are affected?
Supsystic Contact Form through 1.10.5.
Is there a fix for CVE-2026-115591?
Yes: fixed in 1.10.7. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-115591 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-115591?
Check whether you run Supsystic Contact Form 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: 1.10.7

Technical details

The vulnerability involves insertion of sensitive information into sent data, classified as a sensitive data exposure issue. An unauthenticated attacker can exploit this via the network to retrieve embedded sensitive data such as form submissions containing passwords and emails. A fix is available in version 1.10.7 and later.

Affected products

  • Supsystic Contact Form through 1.10.5

Timeline

  • 2026-10-26: disclosed
  • 2026-10-28: advisory

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.