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Security Advisories: GSA_kwCzR0hTQS14MjM0LW1nN3EtbThnOM4AAz_w

XWiki Platform vulnerable to reflected cross-site scripting via xredirect parameter in deletespace template

Impact

Users are able to forge an URL with a payload allowing to inject Javascript in the page (XSS).
It's possible to exploit the deletespace template to perform a XSS, e.g. by using URL such as:

xwiki/bin/deletespace/Sandbox/?xredirect=javascript:alert(document.domain)

This vulnerability exists since XWiki 3.4-milestone-1.

Patches

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

Workarounds

It's possible to workaround the vulnerability by editing the template deletespace.vm to perform checks on it, but note that the appropriate fix involves new APIs that have been recently introduced in XWiki. See the referenced jira tickets.

References

Jira ticket about the vulnerability: https://jira.xwiki.org/browse/XWIKI-20612
Introduction of the macro used for fixing all those vulnerabilities: https://jira.xwiki.org/browse/XWIKI-20583
Commit containing the actual fix in the template: https://github.com/xwiki/xwiki-platform/commit/5c20ff5e3bdea50f1053fe99a27e011b8d0e4b34

For more information

If you have any questions or comments about this advisory:

Open an issue in Jira XWiki.org
Email us at Security Mailing List

Permalink: https://github.com/advisories/GHSA-x234-mg7q-m8g8
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS14MjM0LW1nN3EtbThnOM4AAz_w
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: 11 months ago
Updated: 6 months ago

CVSS Score: 9.7
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Identifiers: GHSA-x234-mg7q-m8g8, CVE-2023-35159
References:

Repository: https://github.com/xwiki/xwiki-platform
Blast Radius: 1.0

Affected Packages

maven:org.xwiki.platform:xwiki-platform-web-templates

Affected Version Ranges: >= 15.0-rc-1, < 15.1-rc-1, >= 3.4-milestone-1, < 14.10.5
Fixed in: 15.1-rc-1, 14.10.5