What is CVE-2021-20829?

CVE-2021-20829 is a medium-severity vulnerability in Weseek Growi, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-09-21.

How severe is CVE-2021-20829?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Weseek Growi

CVE-2021-20829

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.008 (51.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weseek Growi
Weseek, Inc. Growi — versions versions v4.2.19 and earlier

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

vultures@jpcert.or.jp (Third Party Advisory, x_refsource_MISC)
vultures@jpcert.or.jp (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-20829?: CVE-2021-20829 is a medium-severity vulnerability in Weseek Growi, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-09-21.
How severe is CVE-2021-20829?: Medium severity. CVSS v3 base score is 6.1 out of 10.