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GHSA-vpx4-7rfp-h545

MediumCVSS 6.5 / 10
Published Mar 3, 2023·Last modified Nov 8, 2023
Affected Components(0)

No affected components available

Description

Impact

Any user with edit right can execute arbitrary database select and access data stored in the database.

To reproduce:

  • In admin, rights, remove scripting rights for {{XWikiAllGroup}}.
  • Create a new user without any special privileges.
  • Create a page "Private.WebHome" with {{TOKEN_42}} as content. Go to "page administration" and explicitly set all rights for "Admin" to remove them for all other users.
  • Logout and login as the unprivileged user. Ensure that the previously created page cannot be viewed.
  • Create a new page "ExploitClass.WebHome" and then open it in the class editor (first, make the user an advanced user).
  • Add a field named {{ContentList}} of type {{Database List}}
  • Enter in field "Hibernate Query" the following content: {noformat}select doc.content, doc.fullName from XWikiDocument as doc where doc.fullName = 'Private.WebHome'{noformat}
  • Save the class.
  • Open [http://localhost:8080/xwiki/bin/view/ExploitClass/?xpage=suggest&classname=ExploitClass.WebHome&fieldname=ContentList&firCol=doc.fullName&secCol=-]

Patches

The problem has been patched on XWiki 13.10.11, 14.4.7, and 14.10.

Workarounds

There is no workaround for this vulnerability other than upgrading.

References

https://jira.xwiki.org/browse/XWIKI-19523

For more information

If you have any questions or comments about this advisory:

Risk Scores
Base Score
6.5

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.

Threat Intelligence
6.0

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
0.64%

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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