CVE-2021-37271

Name: CVE-2021-37271
Creator: NVD / NIST
Published: 2021-09-28T19:15:07.113+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.54%

Last modified Jun 17, 2026

CVE-2021-37271 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Cross Site Scripting (XSS) vulnerability exists in UEditor v1.4.3.3, which can be exploited by an attacker to obtain user cookie information.. EPSS estimates a 0.54% chance of exploitation in the next 30 days.

Description

Cross Site Scripting (XSS) vulnerability exists in UEditor v1.4.3.3, which can be exploited by an attacker to obtain user cookie information.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.54%

41.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Baidu	Ueditor	1.4.3.3

References

https://www.cnvd.org.cn/flaw/show/3243916Third Party Advisory
https://www.freebuf.com/vuls/269956.htmlExploit, Third Party Advisory
https://www.cnvd.org.cn/flaw/show/3243916Third Party Advisory
https://www.freebuf.com/vuls/269956.htmlExploit, Third Party Advisory

Timeline

Published: Sep 28, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-37271?

Cross Site Scripting (XSS) vulnerability exists in UEditor v1.4.3.3, which can be exploited by an attacker to obtain user cookie information.

How severe is CVE-2021-37271?

CVE-2021-37271 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.54% probability of exploitation in the next 30 days.

How do I fix CVE-2021-37271?

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-2021-37271?

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

Scan your code now

Source: NVD / NIST