XWiki Platform CSRF remote code execution through the realtime HTML Converter API

高 8.8CVE-2024-31988 · GHSA-r5vh-gc3r-r24w · 10/04/2024 公開 · 17/06/2026 更新

要点

CVE-2024-31988 は org.xwiki.platform:xwiki-platform-realtime-ui, xwiki (xwiki) に影響する深刻度「高」 (CVSS 8.8) の脆弱性です。
今後30日間に悪用される確率（EPSS）：0.70%（全脆弱性の 53.0% より高い）。
対処：14.10.19, 15.5.4, 15.9 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
org.xwiki.platform:xwiki-platform-realtime-ui Maven	`≥ 13.9-rc-1, < 14.10.19≥ 15.0-rc-1, < 15.5.4≥ 15.6-rc-1, < 15.9`	`14.10.1915.5.415.9`
xwiki xwiki	`≥ 13.9, < 14.10.19≥ 15.0, < 15.5.4≥ 15.6, < 15.9`	`14.10.1915.5.415.9`

概要

Impact

When the realtime editor is installed in XWiki, it allows arbitrary remote code execution with the interaction of an admin user with programming right. More precisely, by getting an admin user to either visit a crafted URL or to view an image with this URL that could be in a comment, the attacker can get the admin to execute arbitrary XWiki syntax including scripting macros with Groovy or Python code. This compromises the confidentiality, integrity and availability of the whole XWiki installation.

To reproduce on an XWiki installation, as an admin, click on <xwiki-host>/xwiki/bin/get/RTFrontend/ConvertHTML?wiki=xwiki&space=Main&page=WebHome&text=%7B%7Bvelocity%7D%7D%24logtool.error%28%22Hello%20from%20Velocity%20%21%22%29%7B%7B%2Fvelocity%7D%7D. If the error "Hello from Velocity!" gets logged then the installation is vulnerable.

Patches

This vulnerability has been patched in XWiki 14.10.19, 15.5.4 and 15.9.

Workarounds

Update RTFrontend.ConvertHTML following this patch. This will, however, break some synchronization processes in the realtime editor, so upgrading should be the preferred way on installations where this editor is used.

References

NVD の説明

XWiki Platform is a generic wiki platform. Starting in version 13.9-rc-1 and prior to versions 4.10.19, 15.5.4, and 15.10-rc-1, when the realtime editor is installed in XWiki, it allows arbitrary remote code execution with the interaction of an admin user with programming right. More precisely, by getting an admin user to either visit a crafted URL or to view an image with this URL that could be in a comment, the attacker can get the admin to execute arbitrary XWiki syntax including scripting macros with Groovy or Python code. This compromises the confidentiality, integrity and availability of the whole XWiki installation. This vulnerability has been patched in XWiki 14.10.19, 15.5.4 and 15.9. As a workaround, one may update `RTFrontend.ConvertHTML` manually with the patch. This will, however, break some synchronization processes in the realtime editor, so upgrading should be the preferred way on installations where this editor is used.