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.)
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | ezsystems/ezplatform-admin-ui | >= 1.3.0, < 1.3.5, >= 1.4.0, < 1.4.4 | 1.3.5, 1.4.4 |
References
- https://github.com/FriendsOfPHP/security-advisories/blob/master/ezsystems/ezplatform-admin-ui/CVE-2019-12139.yaml
- https://github.com/ezsystems/ezplatform-admin-ui
- https://share.ez.no/community-project/security-advisories/ezsa-2019-001-xss-in-admin-ui
- https://web.archive.org/web/20201207160038/https://share.ez.no/community-project/security-advisories/ezsa-2019-001-xss-in-admin-ui
- Weakness (CWE)
CWE-79- Platform
- Composer
- Package
ezsystems/ezplatform-admin-ui- Disclosed
- 15.05.2024
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-q73v-79x3-jv2w - CC BY 4.0
Vulnerability history: ezsystems/ezplatform-admin-ui
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 10
- First → latest
- 12.2021 10.2025
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 2
- High 2
- Medium 6
Disclosures per year
- 2021: 1
- 2022: 4
- 2023: 0
- 2024: 3
- 2025: 2
- 2026: 0
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eZ Platform Admin UI Cross-site Scripting vulnerability this entry
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