XWiki Platform: Path traversal via resources parameter in ssx and jsx endpoints when using leading slash

XWiki Platform is a generic wiki platform. Versions prior to 18.1.0-rc-1, 17.10.3, 17.4.9, and 16.10.17 allow access to read configuration files by using URLs such as http://localhost:8080/bin/ssx/Main/WebHome?resource=/../../WEB-INF/xwiki.cfg&minify=false, leading to Path Traversal. The vulnerability is can be exploited via resources parameter the ssx and jsx endpoints by using leading slashes. This issue has been patched in 18.1.0-rc-1, 17.10.3, 17.4.9, 16.10.17.

CryptPad unbounded WebSocket frame flood

CryptPad 2025.3.1 allows unbounded WebSocket frame flood. A remote, unauthenticated attacker can significantly degrade or deny service for all users of a CryptPad instance. Fixed in 2026.2.2.

XWiki's REST APIs can list all pages/spaces, leading to unavailability

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Versions 1.8-rc-1, 17.0.0-rc-1 and 17.5.0-rc-1 and prior include a resource exhaustion vulnerability in REST API endpoints such as /xwiki/rest/wikis/xwiki/spaces/AnnotationCode/pages/AnnotationConfig/objects/AnnotationCode.AnnotationConfig/0/properties, which list all available pages as part of the metadata for database list properties without applying query limits. On large wikis, this can exhaust available server resources. This issue has been patched in versions 16.10.16, 17.4.8 and 17.10.1.

XWiki has Reflected Cross-Site Scripting (XSS) in its page history compare functionality

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Versions 10.4-rc-1, through 16.10.15, 17.0.0-rc-1, through 17.4.7 and 17.5.0-rc-1 through 17.10.0 contain a reflected cross-site scripting vulnerability (XSS) in the comparison 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. If developers are unable to update immediately, they can apply the patch manually to templates/changesdoc.vm in the deployed WAR.

The "You are not allowed..." error handler in XWiki 1.0 B1 and 1.0 B2 associates the doc variable with the entire document content and metadata regardless of a user's view rights, which allows remote authenticated users to read arbitrary documents via a custom skin that prints the content attribute of the doc variable.

PreviewAction in XWiki 0.9.543 through 0.9.1252 does not set the Author field to the identity of the user who last modified a document, which allows remote authenticated users without programming rights to execute arbitrary code by selecting a document whose author has programming rights, modifying this document to contain a script, and previewing without saving the document.

Unspecified vulnerability in the Multiwiki plugin in XWiki before 1.1 Enterprise RC2 allows remote authenticated users, with administrative access to one wiki in a multiwiki environment, to obtain sensitive information via unknown attack vectors. NOTE: Some of these details are obtained from third party information.

XWiki Affected by Reflected Cross-Site Scripting (XSS) in Error Messages

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Versions 7.0-milestone-2 through 16.10.11, 17.0.0-rc-1 through 17.4.4, and 17.5.0-rc-1 through 17.7.0 contain a reflected Cross-site Scripting (XSS) vulnerability, which allows an attacker to craft a malicious URL and execute arbitrary actions with the same privileges as the victim. If the victim has administrative or programming rights, those rights can be exploited to gain full access to the XWiki installation. This issue has been patched in versions 17.8.0-rc-1, 17.4.5 and 16.10.12. To workaround, the patch can be applied manually, only a single line in templates/logging_macros.vm needs to be changed, no restart is required.

XWiki Platform affected by click-jacking through CSS injection in comments

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Prior to 17.9.0, 17.4.6, and 16.10.13, it's possible using comments to inject CSS that would transform the full wiki in a link area leading to a malicious page. This vulnerability is fixed in 17.9.0, 17.4.6, and 16.10.13.

The search functionality in XWiki 0.9.793 indexes cleartext user passwords, which allows remote attackers to obtain sensitive information via a search string that matches a password.

XWiki Platform affected by remote code execution with script right through unprotected Velocity scripting API

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Prior to 17.4.8 and 17.10.1, an improperly protected scripting API allows any user with script right to bypass the sandboxing of the Velocity scripting API and execute, e.g., arbitrary Python scripts, allowing full access to the XWiki instance and thereby compromising the confidentiality, integrity and availability of the whole instance. Note that script right already constitutes a high level of access that we don't recommend giving to untrusted users. This vulnerability is fixed in 17.4.8 and 17.10.1.

The Mocca Calendar application before 2.15 for XWiki allows XSS via the background or text color field.

XWiki Blog Application: Privilege Escalation (PR) from account through blog content

The XWiki blog application allows users of the XWiki platform to create and manage blog posts. Prior to version 9.14, the blog application in XWiki allowed remote code execution for any user who has edit right on any page. Normally, these are all logged-in users as they can edit their own user profile. For an exploit, it is sufficient to add an object of type `Blog.BlogPostClass` to any page and to add some script macro with the exploit code to the "Content" field of that object. The vulnerability has been patched in the blog application version 9.14 by executing the content of blog posts with the rights of the appropriate author. No known workarounds are available.

XWiki AdminTools application doesn't set permissions on the AdminTools space

XWiki AdminTools integrates administrative tools for managing a running XWiki instance. Prior to version 1.1, users without admin rights have access to AdminTools.SpammedPages. View rights are not restricted only to admin users for AdminTools.SpammedPages. While no data is visible to non admin users, the page is still accessible. This issue has been patched in version 1.1. A workaround involves setting the view rights for the AdminTools space to be only available for the XWikiAdminGroup.

XWiki Platform vulnerable to HQL injection via wiki and space search REST API

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Starting in version 4.3-milestone-1 and prior to versions 16.10.9, 17.4.2, and 17.5.0, the REST search URL is vulnerable to HQL injection via the `orderField` parameter. The specified value is added twice in the query, though, once in the field list for the select and once in the order clause, so it's not that easy to exploit. The part of the query between the two fields can be enclosed in single quotes to effectively remove them, but the query still needs to remain valid with the query two times in it. This has been patched in versions 17.5.0, 17.4.2, and 16.10.9. No known workarounds are available.

The Mocca Calendar application before 2.15 for XWiki allows XSS via a title upon calendar import.

The Mocca Calendar application before 2.15 for XWiki allows XSS via a title to the view event page.

XWiki OIDC Authenticator vulnerable to creation of token for any user with just `view` right

XWiki OIDC has various tools to manipulate OpenID Connect protocol in XWiki. Starting in version 2.17.1 and prior to version 2.18.2, anyone with VIEW access to a user profile can create a token for that user. If that XWiki instance is configured to allow token authentication, it allows authentication with any user (since users are very commonly viewable, at least to other registered users). Version 2.18.2 contains a patch. As a workaround, disable token access.

The XWiki Jetty package (XJetty) allows accessing any application file through URL

XWiki is an open-source wiki software platform. From 16.7.0 to 16.10.11, 17.4.4, or 17.7.0, in an instance which is using the XWiki Jetty package (XJetty), a context is exposed to statically access any file located in the webapp/ folder. It allows accessing files which might contains credentials. Fixed in 16.10.11, 17.4.4, and 17.7.0.

Remote code execution as guest via SolrSearchMacros request in xwiki

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any guest can perform arbitrary remote code execution through a request to `SolrSearch`. This impacts the confidentiality, integrity and availability of the whole XWiki installation. To reproduce on an instance, without being logged in, go to `<host>/xwiki/bin/get/Main/SolrSearch?media=rss&text=%7D%7D%7D%7B%7Basync%20async%3Dfalse%7D%7D%7B%7Bgroovy%7D%7Dprintln%28"Hello%20from"%20%2B%20"%20search%20text%3A"%20%2B%20%2823%20%2B%2019%29%29%7B%7B%2Fgroovy%7D%7D%7B%7B%2Fasync%7D%7D%20`. If there is an output, and the title of the RSS feed contains `Hello from search text:42`, then the instance is vulnerable. This vulnerability has been patched in XWiki 15.10.11, 16.4.1 and 16.5.0RC1. Users are advised to upgrade. Users unable to upgrade may edit `Main.SolrSearchMacros` in `SolrSearchMacros.xml` on line 955 to match the `rawResponse` macro in `macros.vm#L2824` with a content type of `application/xml`, instead of simply outputting the content of the feed.