CVE-2021-23772
CVSS v3
8.8
HIGH
EPSS Score
1.8 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
This affects all versions of package github.com/kataras/iris; all versions of package github.com/kataras/iris/v12. The unsafe handling of file names during upload using UploadFormFiles method may enable attackers to write to arbitrary locations outside the designated target folder.
Technical details
- Published
- 2021-12-24
Frequently asked questions
What is CVE-2021-23772?
This affects all versions of package github.com/kataras/iris; all versions of package github.com/kataras/iris/v12. The unsafe handling of file names during upload using UploadFormFiles method may enable attackers to write to arbitrary locations outside the designated target folder.
Is CVE-2021-23772 actively exploited?
Active exploitation of CVE-2021-23772 has not been confirmed. Its EPSS score was 1.8% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-23772?
CVE-2021-23772 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2021-23772 affecting your environment?
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