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
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
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
Frequently Asked Questions
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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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