Summary
silverstripe/userforms file upload exposure on UserForms module
The userforms module allows CMS administrators to create public facing forms with file upload abilities. These files are uploaded into a predictable public path on the website, unless configured otherwise by the CMS administrator setting up the form. While the name of the uploaded file itself is not predictable, certain actions taken by CMS authors could expose it. For example, submission notification emails contain a link to the file without authorisation checks.
In 3.0.0 this field is disabled by default, but re-enabled upon installation of the secure assets module. When this is installed, the field can once again be used within a form, and will automatically lock this folder to a secure list of users, which can then be configured further by an administrator.
Existing file upload fields will not be disabled, but will require re-enabling via config or installation of secure assets to become editable again.
If any upload field points or is pointed to a folder that is not secured, and the secure assets module is present, then that folder will have the secure permissions applied automatically.
Impact
GHSA-55PP-293F-3365 has a CVSS score of 4.3 (Medium). The vector is network-reachable, low privileges required, and no user interaction. 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 (3.0.0); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
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. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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Frequently Asked Questions
- What is GHSA-55PP-293F-3365? GHSA-55PP-293F-3365 is a medium-severity security vulnerability in silverstripe/userforms (composer), affecting versions < 3.0.0. It is fixed in 3.0.0.
- How severe is GHSA-55PP-293F-3365? GHSA-55PP-293F-3365 has a CVSS score of 4.3 (Medium). 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.
- Which versions of silverstripe/userforms are affected by GHSA-55PP-293F-3365? silverstripe/userforms (composer) versions < 3.0.0 is affected.
- Is there a fix for GHSA-55PP-293F-3365? Yes. GHSA-55PP-293F-3365 is fixed in 3.0.0. Upgrade to this version or later.
- Is GHSA-55PP-293F-3365 exploitable, and should I be worried? Whether GHSA-55PP-293F-3365 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
- What actually determines whether GHSA-55PP-293F-3365 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.
- How do I fix GHSA-55PP-293F-3365? Upgrade
silverstripe/userformsto 3.0.0 or later.