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 |
|---|---|---|---|---|
| 8.7 | High | 4.0 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0066, the 51st percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:21 UTC First seen by agentprime
- 31 Oct 2026, 15:21 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-wr57-hqmp-fgvh
- OSV: GHSA-wr57-hqmp-fgvh
- github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-wr57-hqmp-fgvh
- github.com/umbraco/Umbraco-CMS/commit/26312a3f717a0f33bb3d7d28b14bef3592bdb0fe
- github.com/umbraco/Umbraco-CMS/commit/5360e2a9681ce2d0024be374e80339260bcc2511
- github.com/umbraco/Umbraco-CMS/commit/a9649da4e5a0786db7688bd6b5036a21df26b015
- github.com/umbraco/Umbraco-CMS
- github.com/umbraco/Umbraco-CMS/releases/tag/release-13.15.1
- github.com/umbraco/Umbraco-CMS/releases/tag/release-17.5.3
- github.com/umbraco/Umbraco-CMS/releases/tag/release-18.0.2