Growi
CVE-2021-20829
MEDIUM
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Lifecycle Timeline
1DescriptionNVD
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.
AnalysisAI
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. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. 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 include: Weseek Growi.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.
NoSQL injection vulnerability in GROWI versions prior to v4.2.20 allows a remote attacker to obtain and/or alter the inf
Cross-site request forgery (CSRF) vulnerability in GROWI v3.4.6 and earlier allows remote attackers to hijack the authen
Remote denial of service via regular expression attack in GROWI allows unauthenticated network attackers to exhaust serv
Cross-user data exposure and tampering in GROWI v7.4.5 and earlier allows any authenticated user who learns a shared AI
Remote path traversal in GROWI v7.5.0 and earlier allows authenticated administrators to execute arbitrary EJS templates
Improper access control vulnerability in GROWI versions v4.2.2 and earlier allows a remote unauthenticated attacker to r
Directory traversal vulnerability in GROWI versions prior to v4.2.3 (v4.2 Series), GROWI versions prior to v4.1.12 (v4.1
Improper input validation in GROWI versions prior to v4.2.3 (v4.2 Series), GROWI versions prior to v4.1.12 (v4.1 Series)
GROWI v4.1.3 and earlier allow remote attackers to obtain information which is not allowed to access via unspecified vec
In WESEEK GROWI before 3.5.0, a remote attacker can obtain the password hash of the creator of a page by leveraging wiki
In WESEEK GROWI before 3.5.0, the site-wide basic authentication can be bypassed by adding a URL parameter access_token
Invalid file validation on the upload feature in GROWI versions v4.2.2 allows a remote attacker with administrative priv
Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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