GHSA-c885-89fw-55qr

Source

https://github.com/advisories/GHSA-c885-89fw-55qr

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/04/GHSA-c885-89fw-55qr/GHSA-c885-89fw-55qr.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-c885-89fw-55qr

Aliases

CVE-2023-29202

Published

2023-04-12T20:38:37Z

Modified

2023-11-08T04:12:17.392995Z

Severity

9.0 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H CVSS Calculator

Summary

org.xwiki.platform:xwiki-platform-rendering-macro-rss Cross-site Scripting vulnerability

Details

Impact

The RSS macro that is bundled in XWiki included the content of the feed items without any cleaning in the HTML output when the parameter content was set to true. This allowed arbitrary HTML and in particular also JavaScript injection and thus cross-site scripting (XSS) by specifying an RSS feed with malicious content. With the interaction of a user with programming rights, this could be used to execute arbitrary actions in the wiki, including privilege escalation, remote code execution, information disclosure, modifying or deleting content and sabotaging the wiki.

The issue can be reproduced by inserting the following XWiki syntax in any wiki page like the user account:

{{rss feed="https://xssrss.blogspot.com/feeds/posts/default?alt=rss" content="true" /}}

If an alert is displayed when viewing the page, the wiki is vulnerable.

Patches

The issue has been patched in XWiki 14.6 RC1, the content of the feed is now properly cleaned before being displayed.

Workarounds

If the RSS macro isn't used in the wiki, the macro can be uninstalled by deleting WEB-INF/lib/xwiki-platform-rendering-macro-rss-XX.jar, where XX is XWiki's version, in the web application's directory.

References

https://github.com/xwiki/xwiki-platform/commit/5c7ebe47c2897e92d8f04fe2e15027e84dc3ec03
https://jira.xwiki.org/browse/XWIKI-19671

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

Database specific

{
    "nvd_published_at": "2023-04-15T15:15:00Z",
    "github_reviewed_at": "2023-04-12T20:38:37Z",
    "severity": "CRITICAL",
    "github_reviewed": true,
    "cwe_ids": [
        "CWE-79"
    ]
}

References

Affected packages

Maven / org.xwiki.platform:xwiki-core-rendering-macro-rss

Package

Name: org.xwiki.platform:xwiki-core-rendering-macro-rss; View open source insights on deps.dev
Purl: pkg:maven/org.xwiki.platform/xwiki-core-rendering-macro-rss

Affected ranges

Type: ECOSYSTEM
Events: Introduced

1.8

Last affected

3.0.1

Maven / org.xwiki.platform:xwiki-platform-rendering-macro-rss

Package

Name: org.xwiki.platform:xwiki-platform-rendering-macro-rss; View open source insights on deps.dev
Purl: pkg:maven/org.xwiki.platform/xwiki-platform-rendering-macro-rss

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

14.6-rc-1