Summary
eZ Platform Admin UI Cross-site Scripting vulnerability
This security advisory fixes a severe vulnerability in the eZ Platform Admin UI, and we recommend that you install it as soon as possible. Parts of the Admin UI are vulnerable to XSS injection. All 2.x sites are at risk, and particularly those that allow user generated content. The update adds the necessary escaping of injected code. This resolves the issue both for code that has already been injected, and any future such code.
To install, use Composer to update "ezsystems/ezplatform-admin-ui" and "ezsystems/ezplatform-page-builder" to one of the "Resolving versions" mentioned above. (ezplatform-page-builder exists only in eZ Platform Enterprise Edition.)
Impact
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.
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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ezsystems/ezplatform-admin-ui to 1.3.5 or later; ezsystems/ezplatform-admin-ui to 1.4.4 or later
Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
Frequently Asked Questions
- What is GHSA-Q73V-79X3-JV2W? GHSA-Q73V-79X3-JV2W is a high-severity cross-site scripting (XSS) vulnerability in ezsystems/ezplatform-admin-ui (composer), affecting versions >= 1.3.0, < 1.3.5. It is fixed in 1.3.5, 1.4.4. Untrusted input is rendered as active markup in a victim's browser, which can run script in their session.
- Which versions of ezsystems/ezplatform-admin-ui are affected by GHSA-Q73V-79X3-JV2W? ezsystems/ezplatform-admin-ui (composer) versions >= 1.3.0, < 1.3.5 is affected.
- Is there a fix for GHSA-Q73V-79X3-JV2W? Yes. GHSA-Q73V-79X3-JV2W is fixed in 1.3.5, 1.4.4. Upgrade to this version or later.
- Is GHSA-Q73V-79X3-JV2W exploitable, and should I be worried? Whether GHSA-Q73V-79X3-JV2W 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-Q73V-79X3-JV2W 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-Q73V-79X3-JV2W?
- Upgrade
ezsystems/ezplatform-admin-uito 1.3.5 or later - Upgrade
ezsystems/ezplatform-admin-uito 1.4.4 or later
- Upgrade