CVE-2025-66402 misskey.js's export data contains private post data

Misskey is an open source, federated social media platform. Starting in version 13.0.0-beta.16 and prior to version 2025.12.0, an actor who does not have permission to view favorites or clips can can export the posts and view the contents. Version 2025.12.0 fixes the issue...

CVE-2025-61775

Vickey is a Misskey-based microblogging platform. A vulnerability exists in Vickey prior to version 2025.10.0 where unexpired email confirmation links can be reused multiple times to send repeated confirmation emails to a verified email address. Under certain conditions, a verified email address...

EUVD-2021-25571

Malware in sbrugna...

EUVD-2024-43810

Malicious code in bioql PyPI...

CVE-2023-24811

Misskey is an open source, decentralized social media platform. In versions prior to 13.3.2 the URL preview function is subject to a cross site scripting vulnerability due to insufficient URL validation. Arbitrary JavaScript is executed when a malicious URL is loaded in the View in Player or View...

CVE-2023-25154

Misskey is an open source, decentralized social media platform. In versions prior to 13.5.0 the link to the instance to the sender that appears when viewing a user or note received through ActivityPub is not properly validated, so by inserting a URL with a javascript scheme an attacker may execut...

CVE-2025-46340

Misskey is an open source, federated social media platform. Starting in version 12.0.0 and prior to version 2025.4.1, due to an oversight in the validation performed in UrlPreviewService and MkUrlPreview, it is possible for an attacker to inject arbitrary CSS into the MkUrlPreview component...

CVE-2025-46559

Misskey is an open source, federated social media platform. Starting in version 12.31.0 and prior to version 2025.4.1, missing validation in Mk:api allows malicious AiScript code to access additional endpoints that it isn't designed to have access to. The missing validation allows malicious...

CVE-2025-46340 Misskey CSS Style Injection Vulnerability In `MkUrlPreview`

Misskey is an open source, federated social media platform. Starting in version 12.0.0 and prior to version 2025.4.1, due to an oversight in the validation performed in UrlPreviewService and MkUrlPreview, it is possible for an attacker to inject arbitrary CSS into the MkUrlPreview component...

CVE-2025-25306 Misskey's Incomplete Patch of CVE-2024-52591 Leads to Forgery of Federated Notes

Misskey is an open source, federated social media platform. The patch for CVE-2024-52591 did not sufficiently validate the relation between the id and url fields of ActivityPub objects. An attacker can forge an object where they claim authority in the url field even if the specific ActivityPub...

CVE-2025-24897 Misskey CSRF vulnerability due to insecure configuration of authentication cookie attributes

Misskey is an open source, federated social media platform. Starting in version 12.109.0 and prior to version 2025.2.0-alpha.0, due to a lack of CSRF protection and the lack of proper security attributes in the authentication cookies of Bull's dashboard, some of the APIs of bull-board may be...

Misskey 安全漏洞

Misskey is a perpetually free open source syndicated social media platform from Misskey Open Source. A security vulnerability exists in Misskey version 12.109.0 through versions prior to 2025.2.0-alpha.0, which stems from a lack of CSRF protection and proper security attributes, and may be...

CVE-2024-49363

Misskey is an open source, federated social media platform. In affected versions FileServerService media proxy in github.com/misskey-dev/misskey 2024.10.1 or earlier did not detect proxy loops, which allows remote actors to execute a self-propagating reflected/amplified distributed...

CVE-2024-52592

Misskey is an open source, federated social media platform. In affected versions missing validation in ApInboxService.update allows an attacker to modify the result of polls belonging to another user. No authentication is required, except for a valid signature from any actor on any remote instanc...

CVE-2024-49363 Uncontrolled Recursion and Asymmetric Resource Consumption (Amplification) in media/file proxy in Misskey

Misskey is an open source, federated social media platform. In affected versions FileServerService media proxy in github.com/misskey-dev/misskey 2024.10.1 or earlier did not detect proxy loops, which allows remote actors to execute a self-propagating reflected/amplified distributed...

CVE-2024-49363

Misskey FileServerService (media proxy) in version 2024.10.1 and earlier is vulnerable: proxyHandler does not verify that incoming requests come from a proxy, enabling a self-propagating reflected/amplified DDoS via nested proxy requests ending in a redirect to another nested proxy. This can caus...

CVE-2024-52591 Missing validation allows spoofed profiles and notes in Misskey

Misskey is an open source, federated social media platform. In affected versions missing validation in ApRequestService.signedGet and HttpRequestService.getActivityJson allows an attacker to create fake user profiles and forged notes. The spoofed users will appear to be from a different instance...

CVE-2024-52591 Missing validation allows spoofed profiles and notes in Misskey

Misskey is an open source, federated social media platform. In affected versions missing validation in ApRequestService.signedGet and HttpRequestService.getActivityJson allows an attacker to create fake user profiles and forged notes. The spoofed users will appear to be from a different instance...

CVE-2024-52592 Missing validation allows spoofed poll updates in Misskey

Misskey is an open source, federated social media platform. In affected versions missing validation in ApInboxService.update allows an attacker to modify the result of polls belonging to another user. No authentication is required, except for a valid signature from any actor on any remote instanc...

CVE-2024-52592 Missing validation allows spoofed poll updates in Misskey

Misskey is an open source, federated social media platform. In affected versions missing validation in ApInboxService.update allows an attacker to modify the result of polls belonging to another user. No authentication is required, except for a valid signature from any actor on any remote instanc...