4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.4 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
33.9%
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.)
github.com/ezsystems/ezplatform-admin-ui
github.com/FriendsOfPHP/security-advisories/blob/master/ezsystems/ezplatform-admin-ui/CVE-2019-12139.yaml
share.ez.no/community-project/security-advisories/ezsa-2019-001-xss-in-admin-ui
web.archive.org/web/20201207160038/https://share.ez.no/community-project/security-advisories/ezsa-2019-001-xss-in-admin-ui
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.4 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
33.9%