GHSA-w4fj-87j5-f25c
XWiki has Reflected Cross-Site Scripting (XSS) in page history compare
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Maven | org.xwiki.platform:xwiki-platform-web-templates | >= 10.4-rc-1, < 16.10.16 | 16.10.16 |
| Maven | org.xwiki.platform:xwiki-platform-web-templates | >= 17.0.0-rc-1, < 17.4.8 | 17.4.8 |
| Maven | org.xwiki.platform:xwiki-platform-web-templates | >= 17.5.0-rc-1, < 17.10.1 | 17.10.1 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
A reflected cross-site scripting vulnerability (XSS) in the compare view between revisions of a page allows executing JavaScript code in the user's browser. If the current user is an admin, this can not only affect the current user but also the confidentiality, integrity and availability of the whole XWiki instance.
### Patches
The problem has been patched by properly escaping the URL parameters.
### Workarounds
The [patch](https://github.com/xwiki/xwiki-platform/commit/3c8a2ec985641367015c2db937574fcd360c788c#diff-a5e75a4e3820a63c02a32666dda67c73ee7885ab8e7f67e52cfcb3be5a13326e) can be applied manually to `templates/changesdoc.vm` in the deployed WAR.
### Attribution
XWiki thanks Mike Cole @mikecole-mg for discovering and reporting this vulnerability.
References
External links from the advisory. They lead to third-party sites.