CVE-2026-40105 | XWiki xwiki-platform up to 16.10.15/17.4.7/17.10.0 templates/changesdoc.vm cross site scripting

VDB-357666 · CVE-2026-40105 · GCVE-0-2026-40105 XWIKI XWIKI-PLATFORM UP TO 16.10.15/17.4.7/17.10.0 TEMPLATES/CHANGESDOC.VM CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.1 $0-$5k 3.17+ Summaryinfo A vulnerability categorized as problematic has been discovered in XWiki xwiki-platform up to 16.10.15/17.4.7/17.10.0. Affected by this issue is some unknown functionality of the file templates/changesdoc.vm. The manipulation results in cross site scripting. This vulnerability is identified as CVE-2026-40105. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component. Detailsinfo A vulnerability was found in XWiki xwiki-platform up to 16.10.15/17.4.7/17.10.0. It has been classified as problematic. Affected is an unknown functionality of the file templates/changesdoc.vm. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. This is going to have an impact on integrity. CVE summarizes: 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 advisory is available at github.com. This vulnerability is traded as CVE-2026-40105 since 04/09/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project. Upgrading to version 16.10.16, 17.4.8 or 17.10.1 eliminates this vulnerability. Productinfo Type Content Management System Vendor XWiki Name xwiki-platform Version 16.10.0 16.10.1 16.10.2 16.10.3 16.10.4 16.10.5 16.10.6 16.10.7 16.10.8 16.10.9 16.10.10 16.10.11 16.10.12 16.10.13 16.10.14 16.10.15 17.0 17.1 17.2 17.3 17.4 17.4.0 17.4.1 17.4.2 17.4.3 17.4.4 17.4.5 17.4.6 17.4.7 17.5 17.6 17.7 17.8 17.9 17.10.0 License open-source Website Product: https://github.com/xwiki/xwiki-platform/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 4.3 VulDB Meta Temp Score: 4.1 VulDB Base Score: 4.3 VulDB Temp Score: 4.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Cross site scripting CWE: CWE-80 / CWE-74 / CWE-707 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: xwiki-platform 16.10.16/17.4.8/17.10.1 Timelineinfo 04/09/2026 CVE reserved 04/15/2026 +6 days Advisory disclosed 04/15/2026 +0 days VulDB entry created 04/15/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: github.com Status: Confirmed CVE: CVE-2026-40105 (🔒) GCVE (CVE): GCVE-0-2026-40105 GCVE (VulDB): GCVE-100-357666 Entryinfo Created: 04/15/2026 07:33 Changes: 04/15/2026 07:33 (68) Complete: 🔍 Cache ID: 99:2FC:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸