Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 9.3 | Critical | 4.0 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0059, the 48th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:20 UTC First seen by agentprime
- 31 Oct 2026, 14:20 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-qrvh-r3f2-9h4r
- OSV: GHSA-qrvh-r3f2-9h4r
- github.com/xwiki/xwiki-platform/security/advisories/GHSA-qrvh-r3f2-9h4r
- nvd.nist.gov/vuln/detail/CVE-2026-33137
- github.com/xwiki/xwiki-platform/commit/4b7b95b79256374d487e9ece1dc48f527966990f
- github.com/xwiki/xwiki-platform
- jira.xwiki.org/browse/XWIKI-23953