CVE-2021-4168

Name: CVE-2021-4168
Creator: NVD / NIST
Published: 2021-12-26T14:15:07.393+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.61%

Last modified Jun 17, 2026

CVE-2021-4168 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. showdoc is vulnerable to Cross-Site Request Forgery (CSRF). EPSS estimates a 0.61% chance of exploitation in the next 30 days.

Description

showdoc is vulnerable to Cross-Site Request Forgery (CSRF)

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.61%

44.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-352

Affected Software

Vendor	Product	Versions
Showdoc	Showdoc	< 2.9.15

References

https://github.com/star7th/showdoc/commit/3ff0c85d439ccbdfadeb96b5a52acf6318041109Patch, Third Party Advisory
https://huntr.dev/bounties/f14431e2-f1f6-4331-ba91-a4ea8b26be0cExploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/star7th/showdoc/commit/3ff0c85d439ccbdfadeb96b5a52acf6318041109Patch, Third Party Advisory
https://huntr.dev/bounties/f14431e2-f1f6-4331-ba91-a4ea8b26be0cExploit, Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Dec 26, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-4168?

showdoc is vulnerable to Cross-Site Request Forgery (CSRF)

How severe is CVE-2021-4168?

CVE-2021-4168 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.61% probability of exploitation in the next 30 days.

How do I fix CVE-2021-4168?

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-2021-4168?

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

Scan your code now

Source: NVD / NIST