Answer in brief
CVE-2023-35162 records a Critical severity (CVSS 9.6) vulnerability in XWiki Platform vulnerable to cross-site scripting via xcontinue parameter in previewactions template. The current sources do not mark it as known exploited. The current feed maps org.xwiki.platform:xwiki-platform-flamingo-skin-resources (maven), org.xwiki.platform:xwiki-platform-flamingo-skin-resources (maven). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.6. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps org.xwiki.platform:xwiki-platform-flamingo-skin-resources (maven), org.xwiki.platform:xwiki-platform-flamingo-skin-resources (maven). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| org.xwiki.platform:xwiki-platform-flamingo-skin-resourcesmaven | >=6.1-rc-1 <14.10.5 | 14.10.5 |
| org.xwiki.platform:xwiki-platform-flamingo-skin-resourcesmaven | >=15.0-rc-1 <15.1-rc-1 | 15.1-rc-1 |
Published upstream
Jun 20, 2023
Evidence: source:osv:source_dates:source-dates:recordSource modified
Sep 10, 2026
Evidence: source:osv:source_dates:source-dates:recordFirst seen by HOL
Sep 10, 2026
### Impact Users are able to forge an URL with a payload allowing to inject Javascript in the page (XSS). It's possible to exploit the previewactions template to perform a XSS, e.g. by using URL such as: > <hostname>/xwiki/bin/get/FlamingoThemes/Cerulean?xpage=xpart&vm=previewactions.vm&xcontinue=javascript:alert(document.domain) This vulnerability exists since XWiki 6.1-rc-1. ### Patches The vulnerability has been patched in XWiki 14.10.5 and 15.1-rc-1. ### Workarounds It's possible to workaround the vulnerability by editing the template previewactions.vm to perform checks on it, but note that the appropriate fix involves new APIs that have been recently introduced in XWiki. See the referenced jira tickets. ### References * Jira ticket about the vulnerability: https://jira.xwiki.org/browse/XWIKI-20342 * Introduction of the macro used for fixing this type of vulnerability: https://jira.xwiki.org/browse/XWIKI-20583 * Commit containing the actual fix in the template: https://github.com/xwiki/xwiki-platform/commit/9f01166b1a8ee9639666099eb5040302df067e4d ### For more information If you have any questions or comments about this advisory: * Open an issue in [Jira XWiki.org](https://jira.xwiki.org/) * Email us at [Security Mailing List](mailto:[email protected]) ### Attribution This vulnerability has been reported by René de Sain @renniepak.
Quoted source text, attributed separately from HOL analysis.