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GHSA-h7cw-44vp-jq7h

HighCVSS 8.8 / 10
Published Jun 20, 2023·Last modified Nov 8, 2023
Affected Components(0)

No affected components available

Description

Impact

It's possible to execute any wiki content with the right of the TipsPanel author by creating a tip UI extension.

To reproduce:

  • Add an object of type UIExtensionClass
  • Set "Extension Point ID" to org.xwiki.platform.help.tipsPanel
  • Set "Extension ID" to org.xwiki.platform.user.test (needs to be unique but otherwise doesn't matter)
  • Set "Extension Parameters" to 
    tip={{async async="true" cached="false" context="doc.reference"}}{{groovy}}println("Hello " + "from groovy!"){{/groovy}}{{/async}}
  • Set "Extension Scope" to "Current User".
  • Click "Save & View"
  • Open the "Help.TipsPanel" document at <xwiki-host>/xwiki/bin/view/Help/TipsPanel where <xwiki-host> is the URL of your XWiki installation and press refresh repeatedly.

The groovy macro is executed, after the fix you get an error instead.

Patches

This has been patched in XWiki 15.1-rc-1 and 14.10.5.

Workarounds

There are no known workarounds for it.

References

  • https://jira.xwiki.org/browse/XWIKI-20281
  • https://github.com/xwiki/xwiki-platform/commit/98208c5bb1e8cdf3ff1ac35d8b3d1cb3c28b3263#diff-4e3467d2ef3871a68b2f910e67cf84531751b32e0126321be83c0f1ed5d90b29L176-R178

For more information

If you have any questions or comments about this advisory:

Risk Scores
Base Score
8.8

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 impact is confined to the system where the vulnerability exists. 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
8.1

Exploitation activity has been observed. Apply available patches or mitigations urgently.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within 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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High severity
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