High severity8.0NVD Advisory· Published Aug 27, 2021· Updated Jun 17, 2026
CVE-2021-39169
CVE-2021-39169
Description
Misskey is a decentralized microblogging platform. In versions of Misskey prior to 12.51.0, malicious actors can use the web client built-in dialog to display a malicious string, leading to cross-site scripting (XSS). XSS could compromise the API request token. This issue has been fixed in version 12.51.0. There are no known workarounds aside from upgrading.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:a:misskey:misskey:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:misskey:misskey:*:*:*:*:*:*:*:*range: <12.51.0
- (no CPE)range: <12.51.0
- (no CPE)range: < 12.51.0
Patches
Vulnerability mechanics
References
2- github.com/misskey-dev/misskey/commit/ec203f7f795766f76b55fecc9248168c1cdf6c99nvdPatchThird Party Advisory
- github.com/misskey-dev/misskey/security/advisories/GHSA-pmmv-jwqh-f5wwnvdPatchThird Party Advisory
News mentions
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