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CVE-2024-55662

XWiki allows remote code execution through the extension sheet

10.0 CriticalFix available

XWiki Platform is a generic wiki platform. Starting in version 3.3-milestone-1 and prior to versions 15.10.9 and 16.3.0, on instances where Extension Repository Application is installed, any user can execute any code requiring programming rights on the server. This vulnerability has been fixed in XWiki 15.10.9 and 16.3.0. Since Extension Repository Application is not mandatory, it can be safely disabled on instances that do not use it as a workaround. It is also possible to manually apply the patches from commit 8659f17d500522bf33595e402391592a35a162e8 to the page ExtensionCode.ExtensionSheet and to the page ExtensionCode.ExtensionAuthorsDisplayer.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.79%Up 0.7 points since Dec 13, 2024
90%50%10%1%

What each source reports

CVE List Score used 10.0

XWiki allows remote code execution through the extension sheet

XWiki Platform is a generic wiki platform. Starting in version 3.3-milestone-1 and prior to versions 15.10.9 and 16.3.0, on instances where Extension Repository Application is installed, any user can execute any code requiring programming rights on the server. This vulnerability has been fixed in XWiki 15.10.9 and 16.3.0. Since Extension Repository Application is not mandatory, it can be safely disabled on instances that do not use it as a workaround. It is also possible to manually apply the patches from commit 8659f17d500522bf33595e402391592a35a162e8 to the page ExtensionCode.ExtensionSheet and to the page ExtensionCode.ExtensionAuthorsDisplayer.

Record
CVE-2024-55662
CVSS 3.1
10.0 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness
CWE-96, CWE-863
Updated
2026-11-02
EUVDEUVD-2024-3481 10.0

XWiki Platform is a generic wiki platform. Starting in version 3.3-milestone-1 and prior to versions 15.10.9 and 16.3.0, on instances where Extension Repository Application is installed, any user can execute any code requiring programming rights on the server. This vulnerability has been fixed in XWiki 15.10.9 and 16.3.0. Since Extension Repository Application is not mandatory, it can be safely disabled on instances that do not use it as a workaround. It is also possible to manually apply the patches from commit 8659f17d500522bf33595e402391592a35a162e8 to the page ExtensionCode.ExtensionSheet and to the page ExtensionCode.ExtensionAuthorsDisplayer.

Record
EUVD-2024-3481
CVSS 3.1
10.0 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Updated
2026-11-03
GitHub AdvisoriesGHSA-j2pq-22jj-4pm5 9.9

XWiki allows remote code execution through the extension sheet

Impact

On instances where Extension Repository Application is installed, any user can execute any code requiring programming rights on the server. In order to reproduce on an instance, as a normal user without script nor programming rights, go to your profile and add an object of type ExtensionCode.ExtensionClass. Set the description to {{async}}{{groovy}}println("Hello from Description"){{/groovy}}{{/async}} and press Save and View. If the description displays as Hello from Description without any error, then the instance is vulnerable.

Patches

This vulnerability has been fixed in XWiki 15.10.9 and 16.3.0.

Workarounds

Since Extension Repository Application is not mandatory, it can be safely disabled on instances that do not use it. It is also possible to manually apply this patch to the page ExtensionCode.ExtensionSheet, as well as this patch to the page ExtensionCode.ExtensionAuthorsDisplayer.

References

For more information

If you have any questions or comments about this advisory:

Record
GHSA-j2pq-22jj-4pm5
CVSS 3.1
9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness
CWE-94, CWE-96, CWE-863
Updated
2026-11-02
NVD 9.9

XWiki Platform is a generic wiki platform. Starting in version 3.3-milestone-1 and prior to versions 15.10.9 and 16.3.0, on instances where Extension Repository Application is installed, any user can execute any code requiring programming rights on the server. This vulnerability has been fixed in XWiki 15.10.9 and 16.3.0. Since Extension Repository Application is not mandatory, it can be safely disabled on instances that do not use it as a workaround. It is also possible to manually apply the patches from commit 8659f17d500522bf33595e402391592a35a162e8 to the page ExtensionCode.ExtensionSheet and to the page ExtensionCode.ExtensionAuthorsDisplayer.

Record
CVE-2024-55662
CVSS 3.1
9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-96, CWE-863, CWE-94
Updated
2026-11-02
OSV 9.9

XWiki allows remote code execution through the extension sheet

XWiki Platform is a generic wiki platform. Starting in version 3.3-milestone-1 and prior to versions 15.10.9 and 16.3.0, on instances where Extension Repository Application is installed, any user can execute any code requiring programming rights on the server. This vulnerability has been fixed in XWiki 15.10.9 and 16.3.0. Since Extension Repository Application is not mandatory, it can be safely disabled on instances that do not use it as a workaround. It is also possible to manually apply the patches from commit 8659f17d500522bf33595e402391592a35a162e8 to the page ExtensionCode.ExtensionSheet and to the page ExtensionCode.ExtensionAuthorsDisplayer.

Record
CVE-2024-55662
CVSS 3.1
9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness
CWE-863, CWE-96
Updated
2026-11-02
OSVGHSA-j2pq-22jj-4pm5 9.9

XWiki allows remote code execution through the extension sheet

Impact

On instances where Extension Repository Application is installed, any user can execute any code requiring programming rights on the server. In order to reproduce on an instance, as a normal user without script nor programming rights, go to your profile and add an object of type ExtensionCode.ExtensionClass. Set the description to {{async}}{{groovy}}println("Hello from Description"){{/groovy}}{{/async}} and press Save and View. If the description displays as Hello from Description without any error, then the instance is vulnerable.

Patches

This vulnerability has been fixed in XWiki 15.10.9 and 16.3.0.

Workarounds

Since Extension Repository Application is not mandatory, it can be safely disabled on instances that do not use it. It is also possible to manually apply this patch to the page ExtensionCode.ExtensionSheet, as well as this patch to the page ExtensionCode.ExtensionAuthorsDisplayer.

References

For more information

If you have any questions or comments about this advisory:

Record
GHSA-j2pq-22jj-4pm5
CVSS 3.1
9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness
CWE-863, CWE-94, CWE-96
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
org.xwiki.platform:xwiki-platform-repository-server-ui
Maven
 3.3-milestone-1 up to 15.10.9
15.10.9
org.xwiki.platform:xwiki-platform-repository-server-ui
Maven
 16.0.0-rc-1 up to 16.3.0
16.3.0

History

History
RecordedChangedSources
aliases, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-55662 is a critical vulnerability (CVSS 10.0) in Xwiki, published December 12, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.79%, the 56th percentile. Fixed in org.xwiki.platform:xwiki-platform-repository-server-ui 15.10.9.

References

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