CVE-2021-20829

Description

Cross-site scripting vulnerability due to the inadequate tag sanitization in GROWI versions v4.2.19 and earlier allows remote attackers to execute an arbitrary script on the web browser of the user who accesses a specially crafted page.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.33%
Vendor Advisory co.jp
Affected: WESEEK, Inc. GROWI
Published at:
Updated at:

References

Link Tags
https://jvn.jp/en/vu/JVNVU94889258/index.html third party advisory
https://weseek.co.jp/security/2021/09/17/vulnerability/growi-prevent-multiple-xss-addition/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-20829?
CVE-2021-20829 has been scored as a medium severity vulnerability.
How to fix CVE-2021-20829?
To fix CVE-2021-20829, 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-2021-20829 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-20829 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-20829?
CVE-2021-20829 affects WESEEK, Inc. GROWI.
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