CVE-2021-39169
Last modified
CVE-2021-39169 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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). EPSS estimates a 0.74% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Misskey | Misskey | < 12.51.0 |
References
- https://github.com/misskey-dev/misskey/commit/ec203f7f795766f76b55fecc9248168c1cdf6c99Patch, Third Party Advisory
- https://github.com/misskey-dev/misskey/security/advisories/GHSA-pmmv-jwqh-f5wwPatch, Third Party Advisory
- https://github.com/misskey-dev/misskey/commit/ec203f7f795766f76b55fecc9248168c1cdf6c99Patch, Third Party Advisory
- https://github.com/misskey-dev/misskey/security/advisories/GHSA-pmmv-jwqh-f5wwPatch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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