GHSA-XPFF-C35G-J3CR

silverstripe/framework Privilege Escalation Risk in Member Edit form

A member with the permission EDIT_PERMISSIONS and access to the "Security" section is able to re-assign themselves (or another member) to ADMIN level.

CMS Fields for the member are constructed using DirectGroups instead of Groups relation which results in bypassing security logic preventing privilege escalation.

GHSA-XPFF-C35G-J3CR has a CVSS score of 6.5 (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 (3.5.8, 3.6.6, 4.0.4, 4.1.1); upgrading removes the vulnerable code path.

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1. What is GHSA-XPFF-C35G-J3CR? GHSA-XPFF-C35G-J3CR is a medium-severity security vulnerability in silverstripe/framework (composer), affecting versions >= 3.5.7-rc1, < 3.5.8. It is fixed in 3.5.8, 3.6.6, 4.0.4, 4.1.1.
2. How severe is GHSA-XPFF-C35G-J3CR? GHSA-XPFF-C35G-J3CR has a CVSS score of 6.5 (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.
3. Which versions of silverstripe/framework are affected by GHSA-XPFF-C35G-J3CR? silverstripe/framework (composer) versions >= 3.5.7-rc1, < 3.5.8 is affected.
4. Is there a fix for GHSA-XPFF-C35G-J3CR? Yes. GHSA-XPFF-C35G-J3CR is fixed in 3.5.8, 3.6.6, 4.0.4, 4.1.1. Upgrade to this version or later.
5. Is GHSA-XPFF-C35G-J3CR exploitable, and should I be worried? Whether GHSA-XPFF-C35G-J3CR 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 GHSA-XPFF-C35G-J3CR 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 GHSA-XPFF-C35G-J3CR?
   • Upgrade silverstripe/framework to 3.5.8 or later
   • Upgrade silverstripe/framework to 3.6.6 or later
   • Upgrade silverstripe/framework to 4.0.4 or later
   • Upgrade silverstripe/framework to 4.1.1 or later

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