Arbitrary file upload in Veal98 小牛肉 Echo 开源社区系统
CVE-2025-3566
A vulnerability, which was classified as critical, has been found in veal98 小牛肉 Echo 开源社区系统 4.2. This issue affects the function uploadMdPic of the file /discuss/uploadMdPic. The manipulation of the argument editormd-image-file leads to unrestricted upload. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (36.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Veal98 小牛肉 Echo 开源社区系统 — versions 4.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vuldb.com/ (technical-description, vdb-entry)
- vuldb.com/ (signature, permissions-required)
- vuldb.com/ (third-party-advisory)
- github.com/caigo8/CVE-md/blob/main/Echo/未授权任意文件上传.md (exploit)
Frequently asked questions
- What is CVE-2025-3566?
- CVE-2025-3566 is a high-severity vulnerability in Veal98 小牛肉 Echo 开源社区系统, classified under Improper Access Control. CVSS score: 7.3/10. Published 2025-04-14.
- How severe is CVE-2025-3566?
- High severity. CVSS v3 base score is 7.3 out of 10.
- Is CVE-2025-3566 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.