Answer in brief
CVE-2026-54049 records a High severity (CVSS 8.7) vulnerability in Sakai Conversations has a Stored XSS Issue. The current sources do not mark it as known exploited. The current feed maps sakaiproject/sakai (generic), org.sakaiproject.conversations:sakai-conversations-impl (maven), org.sakaiproject.conversations:sakai-conversations-impl (maven), org.sakaiproject.kernel:sakai-kernel-impl (maven) and additional mapped packages. 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 8.7. 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 sakaiproject/sakai (generic), org.sakaiproject.conversations:sakai-conversations-impl (maven), org.sakaiproject.conversations:sakai-conversations-impl (maven), org.sakaiproject.kernel:sakai-kernel-impl (maven) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| sakaiproject/sakaigeneric | >=23.0 <23.5 || >=25.0 <25.3 | 23.5, 25.3 |
| org.sakaiproject.conversations:sakai-conversations-implmaven | >=23.0,<=23.3 | Not reported |
| org.sakaiproject.conversations:sakai-conversations-implmaven | >=23.0 | Not reported |
| org.sakaiproject.kernel:sakai-kernel-implmaven | >=23.0,<=23.3 | Not reported |
| org.sakaiproject.kernel:sakai-kernel-implmaven | >=23.0 | Not reported |
| org.sakaiproject.rubrics:rubrics-implmaven | >=23.0,<=23.3 | Not reported |
| org.sakaiproject.rubrics:rubrics-implmaven | >=23.0 | Not reported |
Published upstream
Oct 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 25, 2026
Sakai is a Collaboration and Learning Environment (CLE). From versions 23.0 to before 23.5, and versions 25.0 to before 25.3, the Sakai Conversations tool stores topic and post messages without HTML sanitization, and the frontend renders them using LitElement's unsafeHTML() directive, resulting in stored cross-site scripting (XSS). Any authenticated user with access to a site that has the Conversations tool enabled can inject arbitrary HTML and JavaScript that executes in the browsers of all other users who view that topic or post. This issue has been patched in versions 23.5, 25.3, and 26.0.
Quoted source text, attributed separately from HOL analysis.