What’s Vulnerable › Vulnerabilities

CVE-2021-20829

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-09-21 · updated 2026-06-17
• Weakness: CWE-79

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.

Affected products

• WESEEK, Inc. GROWI: through 4.2.19

References

• https://jvn.jp/en/vu/JVNVU94889258/index.html
• https://weseek.co.jp/security/2021/09/17/vulnerability/growi-prevent-multiple-xss-addition/
• https://jvn.jp/en/vu/JVNVU94889258/index.html
• https://weseek.co.jp/security/2021/09/17/vulnerability/growi-prevent-multiple-xss-addition/

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