CVE-2026-32278

Security Advisory, Form Plugin (Stored XSS)

A Stored Cross-site Scripting (XSS) issue exists in the file field of the Form Plugin.

Affected Versions

• 1.x series: <= 1.41.0
• 2.x series: <= 2.41.0

Patched Versions

• 1.41.1
• 2.41.1

Description

In the file field of the Form Plugin, Stored Cross-site Scripting (XSS) could occur. If exploited, arbitrary script could run in an administrator's browser, which may lead to unauthorized actions or information theft. Users affected by this vulnerability should update to a fixed version.

Credits

OpenSource WorkShop thanks Sho Odagiri (小田切 祥) of GMO Cybersecurity by Ierae, Inc. for reporting this vulnerability.

Untrusted input is rendered as active markup in a victim's browser, which can run script in their session. Typical impact: session or credential theft, and actions taken as the user.

CVE-2026-32278 has a CVSS score of 8.2 (High). The vector is network-reachable, no privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (1.41.1, 2.41.1); upgrading removes the vulnerable code path.

Kodem intelligence

Update to the fixed version.
For the 1.x series, update to 1.41.1 or later.
For the 2.x series, update to 2.41.1 or later.

1. What is CVE-2026-32278? CVE-2026-32278 is a high-severity cross-site scripting (XSS) vulnerability in opensource-workshop/connect-cms (composer), affecting versions <= 1.41.0. It is fixed in 1.41.1, 2.41.1. Untrusted input is rendered as active markup in a victim's browser, which can run script in their session.
2. How severe is CVE-2026-32278? CVE-2026-32278 has a CVSS score of 8.2 (High). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which versions of opensource-workshop/connect-cms are affected by CVE-2026-32278? opensource-workshop/connect-cms (composer) versions <= 1.41.0 is affected.
4. Is there a fix for CVE-2026-32278? Yes. CVE-2026-32278 is fixed in 1.41.1, 2.41.1. Upgrade to this version or later.
5. Is CVE-2026-32278 exploitable, and should I be worried? Whether CVE-2026-32278 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether CVE-2026-32278 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix CVE-2026-32278?
   • Upgrade opensource-workshop/connect-cms to 1.41.1 or later
   • Upgrade opensource-workshop/connect-cms to 2.41.1 or later