GHSA-59w6-r9hm-439h · Severity: high · Ecosystem: maven — XWiki does not require right warnings for XClass definitions
XWiki is a generic wiki platform. In versions before 15.10.16, 16.0.0-rc-1 through 16.4.6, and 16.5.0-rc-1 through 16.10.1, when an attacker without script or programming right creates an XClass definition in XWiki (requires edit right), and that same document is later edited by a user with script, admin, or programming right, malicious code could be executed with the rights of the editing user without prior warning. In particular, this concerns custom display code, the script of computed properties and queries in database list properties. Note that warnings before editing documents with dangerous properties have only been introduced in XWiki 15.9, before that version, this was a known issue and the advice was simply to be careful. This has been patched in XWiki 16.10.2, 16.4.7 and 15.10.16 by adding an analysis for the respective XClass properties.
Conclusion & alert: CVE-2025-49585 is rated High Exploit Risk (74.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.62%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-04-09 | 0.25% | 0.62% | +0.37% |
| 2 | 2026-03-09 | 0.24% | 0.25% | +0.01% |
| 3 | 2026-01-17 | — | 0.24% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.6 | 4.0 | HIGH |
|
— | — | [email protected] |
| 8.0 | 3.1 | HIGH |
|
2.1 | 5.9 | [email protected] |
GHSA-59w6-r9hm-439h · Severity: high · Ecosystem: maven — XWiki does not require right warnings for XClass definitions
| URL | Tags |
|---|---|
| https://github.com/xwiki/xwiki-platform/commit/385bde985cdb61ebf315d30c0b144b6d2e2c2d45 | Patch |
| https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-59w6-r9hm-439h | Vendor Advisory |
| https://jira.xwiki.org/browse/XWIKI-22476 | Exploit Issue Tracking Vendor Advisory |