Summary
This security advisory fixes a vulnerability in eZ Platform, and we recommend that you install it as soon as possible. The issue is that the REST API may be made to disclose the names of all available site accesses. The severity of this depends on your installation, please consider your response accordingly.
To install, use Composer to update "ezsystems/ezpublish-kernel" to one of the "Resolving versions" mentioned above, or apply this patch manually:
https://github.com/ezsystems/ezpublish-kernel/commit/1551723ec134878a4cb598bfc5d900ba6164117a
Impact
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.
Remediation advice
ezsystems/ezpublish-kernel to 7.3.2.1 or later; ezsystems/ezpublish-kernel to 7.2.4.1 or later; ezsystems/ezpublish-kernel to 6.13.5.1 or later; ezsystems/ezpublish-kernel to 6.7.9.1 or later; ezsystems/ezpublish-kernel to 5.4.13.1 or later; ezsystems/ezpublish-kernel to 5.3.12.1 or later
Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
Frequently Asked Questions
- What is GHSA-9WWX-C723-VM8X? GHSA-9WWX-C723-VM8X is a medium-severity security vulnerability in ezsystems/ezpublish-kernel (composer), affecting versions >= 7.3.0, < 7.3.2.1. It is fixed in 7.3.2.1, 7.2.4.1, 6.13.5.1, 6.7.9.1, 5.4.13.1, 5.3.12.1.
- Which versions of ezsystems/ezpublish-kernel are affected by GHSA-9WWX-C723-VM8X? ezsystems/ezpublish-kernel (composer) versions >= 7.3.0, < 7.3.2.1 is affected.
- Is there a fix for GHSA-9WWX-C723-VM8X? Yes. GHSA-9WWX-C723-VM8X is fixed in 7.3.2.1, 7.2.4.1, 6.13.5.1, 6.7.9.1, 5.4.13.1, 5.3.12.1. Upgrade to this version or later.
- Is GHSA-9WWX-C723-VM8X exploitable, and should I be worried? Whether GHSA-9WWX-C723-VM8X 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-9WWX-C723-VM8X 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-9WWX-C723-VM8X?
- Upgrade
ezsystems/ezpublish-kernelto 7.3.2.1 or later - Upgrade
ezsystems/ezpublish-kernelto 7.2.4.1 or later - Upgrade
ezsystems/ezpublish-kernelto 6.13.5.1 or later - Upgrade
ezsystems/ezpublish-kernelto 6.7.9.1 or later - Upgrade
ezsystems/ezpublish-kernelto 5.4.13.1 or later - Upgrade
ezsystems/ezpublish-kernelto 5.3.12.1 or later
- Upgrade