Arbitrary file upload in Dcat-Admin
CVE-2026-11621
A weakness has been identified in Dcat-Admin up to 2.2.3-beta. This impacts the function editorMDUpload of the file /admin/dcat-api/editor-md/upload of the component User Setting Page. This manipulation of the argument editormd-image-file causes unrestricted upload. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.002 (11.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Dcat-Admin — versions 2.2.3-beta
Weakness classification (CWE)
References
- vuldb.com/cve/CVE-2026-11621 (third-party-advisory)
- vuldb.com/submit/834849 (third-party-advisory)
- vuldb.com/vuln/369302 (technical-description, vdb-entry)
- vuldb.com/vuln/369302/cti (signature, permissions-required)
- www.yuque.com/u25169484/wroc9b/co6eg4x23xkfesng (exploit)
Frequently asked questions
- What is CVE-2026-11621?
- CVE-2026-11621 is a medium-severity vulnerability in Dcat-Admin, classified under Improper Access Control. CVSS score: 4.7/10. Published 2026-06-09.
- How severe is CVE-2026-11621?
- Medium severity. CVSS v3 base score is 4.7 out of 10.