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GHSA-8cw6-4r32-6r3h

CriticalCVSS 9.9 / 10
Published Mar 3, 2023·Last modified Nov 8, 2023
Affected Components(0)

No affected components available

Description

Impact

Any user can edit his own profile and inject code which is going to be executed with programming right.

Steps to reproduce:

  • Set your first name to
    {{cache id="userProfile"}}{{groovy}}println("Hello from groovy!"){{/groovy}}{{/cache}}

The first name appears as interpreted "Hello from groovy" instead of the expected fully escaped "{{cache id="userProfile"}}{{groovy}}println("Hello from groovy!"){{/groovy}}{{/cache}}".

The same vulnerability can also be exploited in all other places where short text properties are displayed, e.g., in apps created using Apps Within Minutes that use a short text field.

Patches

The problem has been patched on versions 13.10.9, 14.4.4, 14.7RC1.

Workarounds

There are no other workarounds than upgrading XWiki or patching the xwiki-commons-xml JAR file.

References

  • https://jira.xwiki.org/browse/XWIKI-19793
  • https://jira.xwiki.org/browse/XWIKI-19794
  • https://jira.xwiki.org/browse/XCOMMONS-2498

For more information

If you have any questions or comments about this advisory:

Risk Scores
Base Score
9.9

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The vulnerability can affect other systems as well, not just the initial system. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data. There is a high impact on the availability of the system.

Threat Intelligence
9.1

Active exploitation in the wild has been confirmed. Immediate patching or mitigation is required.

EPSS
1.16%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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Critical severity
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