CVE-2022-23626
Insufficient file checks in m1k1o/blog
- Published
- Feb 8, 2022
- Updated
- Apr 22, 2025
- Assigning CNA
- GitHub_M
- Evidence observed
- May 23, 2022
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 95.4%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
m1k1o/blog is a lightweight self-hosted facebook-styled PHP blog. Errors from functions `imagecreatefrom*` and `image*` have not been checked properly. Although PHP issued warnings and the upload function returned `false`, the original file (that could contain a malicious payload) was kept on the disk. Users are advised to upgrade as soon as possible. There are no known workarounds for this issue.
Sources
2- cve-2022-23636-pocExploit
Authenticated remote code execution exploit for m1k1o's Blog v1.3 via unvalidated file upload, with webshell deployment and reverse shell capabilities.
Malte V · php · May 23, 2022
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