CVE-2023-45137
XWiki Platform vulnerable to XSS with edit right in the create document form for existing pages
描述
### Impact When trying to create a document that already exists, XWiki displays an error message in the form for creating it. Due to missing escaping, this error message is vulnerable to raw HTML injection and thus XSS. The injected code is the document reference of the existing document so this requires that the attacker first creates a non-empty document whose name contains the attack code. To reproduce, the following steps can be used: 1. Go to `<xwiki-host>/xwiki/bin/create/Main/WebHome?parent=&templateprovider=&spaceReference=&name=%3Cimg%20onerror=%22alert(1)%22%20src=%22test%22` where `<xwiki-host>` is the URL of your XWiki installation. 2. Create the page and add some content. 3. Go again to `<xwiki-host>/xwiki/bin/create/Main/WebHome?parent=&templateprovider=&spaceReference=&name=%3Cimg%20onerror=%22alert(1)%22%20src=%22test%22` where `<xwiki-host>` is the URL of your XWiki installation. If an alert with content "1" is displayed, the installation is vulnerable. This allows an attacker to execute arbitrary actions with the rights of the user opening the malicious link. Depending on the rights of the user, this may allow remote code execution and full read and write access to the whole XWiki installation. ### Patches This has been patched in XWiki 14.10.12 and 15.5RC1 by adding the appropriate escaping. ### Workarounds The vulnerable template file createinline.vm is part of XWiki's WAR and can be patched by manually applying the [changes from the fix](https://github.com/xwiki/xwiki-platform/commit/ed8ec747967f8a16434806e727a57214a8843581#diff-c222148bddebe4ff7629350f4053b618504a4ab172e697938c8fddf7c1fc6bc8).
如何修補 CVE-2023-45137
要修補 CVE-2023-45137,請將受影響套件升級到下列已修補版本。
- —升級至 13.4-rc-1 或更新版本
- —升級至 14.10.12 或更新版本
CVE-2023-45137 正在被利用嗎?
低 — EPSS 為 0.6%,目前沒有觀察到大規模利用活動。