CVE-2021-23772

Public Exploit
Arbitrary File Write

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.66% Top 30%
Third-Party Advisory github.com Third-Party Advisory snyk.io Third-Party Advisory snyk.io
Affected: n/a github.com/kataras/iris
Affected: n/a github.com/kataras/iris/v12
Published at:
Updated at:

References

Link Tags
https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMKATARASIRIS-2325169 exploit patch third party advisory
https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMKATARASIRISV12-2325170 exploit patch third party advisory
https://github.com/kataras/iris/commit/e213dba0d32ff66653e0ef124bc5088817264b08 patch third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-23772?
CVE-2021-23772 has been scored as a high severity vulnerability.
How to fix CVE-2021-23772?
To fix CVE-2021-23772, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-23772 being actively exploited in the wild?
It is possible that CVE-2021-23772 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-23772?
CVE-2021-23772 affects n/a github.com/kataras/iris, n/a github.com/kataras/iris/v12.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.