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GHSA-5c66-v29h-xjh8
No affected components available
Impact
It is possible to persistently inject scripts in XWiki.
For unregistred users:
- By filling simple text fields
For registered users:
- By filling their personal information
- (if they have edit rights) By filling the values of static lists using App Within Minutes
That can lead to user's session hijacking, and if used in conjunction with a social engineering attack it can also lead to disclosure of sensitive data, CSRF attacks and other security vulnerabilities. That can also lead to the attacker taking over an account. If the victim has administrative rights it might even lead to code execution on the server, depending on the application and the privileges of the account.
Patches
It has been patched on XWiki 12.8 and 12.6.3.
Workarounds
There is no easy workaround except upgrading XWiki.
References
https://jira.xwiki.org/browse/XWIKI-17374
For more information
If you have any questions or comments about this advisory:
- Open an issue in Jira XWiki
- Email us at our security mailing list
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. The attacker needs the user to perform some action, like clicking a link. 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 low impact on the availability of the system.
Exploitation activity has been observed. Apply available patches or mitigations urgently.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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