Summary
eZ Publish Legacy Patch EZSA-2018-001 for Several vulnerabilities
This security advisory fixes 4 separate vulnerabilities in eZ Publish Legacy, and we recommend that you install it as soon as possible if you are using Legacy by itself or via the LegacyBridge.
First, it increases the randomness, and thus the security, of the pseudo-random bytes used to generate a hash for the "forgot password" feature. This protects accounts against being taken over through attacks trying to predict the hash. If the increased randomness is not available in your PHP installation, it will now log a warning.
Second, it improves security of the information collector feature, by ensuring no collection emails will be sent from invalid manipulated forms.
Third, it stops the possible leaking of the names of content objects that should not be readable for certain users, on installations where these users can create or edit XML text.
Fourth, it protects against cross-site scripting (XSS) in the Matrix data type, on installations where users are allowed to edit content classes / content types.
We recommend that you install the security update as soon as possible.
To install, use Composer to update to one of the "Resolving versions" mentioned above, or apply these patches manually:
https://github.com/ezsystems/ezpublish-legacy/commit/917711eb7ffe2b52a3e9fe12505f6810a63696f7
https://github.com/ezsystems/ezpublish-legacy/commit/6db0e6b7739481f27d954548388bd3f0ed2c6fdd
https://github.com/ezsystems/ezpublish-legacy/commit/efcd2b61b15eaaf74e0ff28d6c723cf28e655dab
https://github.com/ezsystems/ezpublish-legacy/commit/f9ffaf590b63b4f552142cfd4441afbbfb3f19b1
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.
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See it in your environmentNew to Kodem? Get a demo →Remediation advice
ezsystems/ezpublish-legacy to 2017.12.2.1 or later; ezsystems/ezpublish-legacy to 5.4.11.3 or later; ezsystems/ezpublish-legacy to 5.3.12.3 or later
Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
Frequently Asked Questions
- What is GHSA-82RV-45PC-V28W? GHSA-82RV-45PC-V28W is a high-severity security vulnerability in ezsystems/ezpublish-legacy (composer), affecting versions >= 2011.0.0, < 2017.12.2.1. It is fixed in 2017.12.2.1, 5.4.11.3, 5.3.12.3.
- Which versions of ezsystems/ezpublish-legacy are affected by GHSA-82RV-45PC-V28W? ezsystems/ezpublish-legacy (composer) versions >= 2011.0.0, < 2017.12.2.1 is affected.
- Is there a fix for GHSA-82RV-45PC-V28W? Yes. GHSA-82RV-45PC-V28W is fixed in 2017.12.2.1, 5.4.11.3, 5.3.12.3. Upgrade to this version or later.
- Is GHSA-82RV-45PC-V28W exploitable, and should I be worried? Whether GHSA-82RV-45PC-V28W 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-82RV-45PC-V28W 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-82RV-45PC-V28W?
- Upgrade
ezsystems/ezpublish-legacyto 2017.12.2.1 or later - Upgrade
ezsystems/ezpublish-legacyto 5.4.11.3 or later - Upgrade
ezsystems/ezpublish-legacyto 5.3.12.3 or later
- Upgrade