CVE-2021-31707

Name: CVE-2021-31707
Creator: NVD / NIST
Published: 2023-04-04T15:15:08.547+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.26%

Last modified Jun 17, 2026

CVE-2021-31707 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Permissions vulnerability found in KiteCMS allows a remote attacker to execute arbitrary code via the upload file type.. EPSS estimates a 1.26% chance of exploitation in the next 30 days.

Description

Permissions vulnerability found in KiteCMS allows a remote attacker to execute arbitrary code via the upload file type.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.26%

65.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Kitesky	Kitecms	All versions

References

https://github.com/Kitesky/KiteCMS/issues/8Broken Link
https://vuldb.com/?id.224929Third Party Advisory, VDB Entry
https://github.com/Kitesky/KiteCMS/issues/8Broken Link

Timeline

Published: Apr 4, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-31707?

Permissions vulnerability found in KiteCMS allows a remote attacker to execute arbitrary code via the upload file type.

How severe is CVE-2021-31707?

CVE-2021-31707 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.26% probability of exploitation in the next 30 days.

How do I fix CVE-2021-31707?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-31707?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST