CVE-2023-24812

Misskey is an open source, decentralized social media platform. In versions prior to 13.3.3 SQL injection is possible due to insufficient parameter validation in the note search API by tag notes/search-by-tag. This has been fixed in version 13.3.3. Users are advised to upgrade. Users unable to...

CVE-2023-43805

Nexkey is a fork of Misskey, an open source, decentralized social media platform. Prior to version 12.121.9, incomplete URL validation can allow users to bypass authentication for access to the job queue dashboard. Version 12.121.9 contains a fix for this issue. As a workaround, it may be possibl...

CVE-2019-1020010

Misskey before 10.102.4 allows hijacking a user's token...

Redirect Filter Bypass

@misskey-dev/summaly is vulnerable to Redirect Filter Bypass. The vulnerability is due to a logic error in the summaly function that prevents the allowRedirects option from being passed, which allows an attacker to force the library to follow unintended redirects...

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 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-2025-46553

@misskey-dev/summaly is a tool for getting a summary of a web page. Starting in version 3.0.1 and prior to version 5.2.1, a logic error in the main summaly function causes the allowRedirects option to never be passed to any plugins, and as a result, isn't enforced. Misskey will follow redirects,...

CVE-2025-46559 Misskey Directory Traversal Vulnerability in AiScript via `Mk:api`

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-2025-46559

CVE-2025-46559 is a Misskey directory traversal vulnerability. In Misskey versions 12.31.0 through 2025.4.0, missing validation in Mk:api lets AiScript prefix a URL with ".." to escape the /api path, enabling requests to endpoints such as /files, /url, and /proxy. The issue is fixed in version 20...

CVE-2025-46559 Misskey Directory Traversal Vulnerability in AiScript via `Mk:api`

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-2025-46559 Misskey Directory Traversal Vulnerability in AiScript via `Mk:api`

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-2025-46340

Misskey CSS style injection vulnerability (CVE-2025-46340) affects 12.0.0 up to 2025.4.0 due to inadequate validation in UrlPreviewService and MkUrlPreview, enabling arbitrary CSS in MkUrlPreview and potential de-anonymization/related client attacks. UrlPreviewService.wrap avoids non-http/https U...

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-2025-46340 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-2025-46553 @misskey-dev/summaly Redirect Filter Bypass

@misskey-dev/summaly is a tool for getting a summary of a web page. Starting in version 3.0.1 and prior to version 5.2.1, a logic error in the main summaly function causes the allowRedirects option to never be passed to any plugins, and as a result, isn't enforced. Misskey will follow redirects,...

CVE-2025-46553 @misskey-dev/summaly Redirect Filter Bypass

@misskey-dev/summaly is a tool for getting a summary of a web page. Starting in version 3.0.1 and prior to version 5.2.1, a logic error in the main summaly function causes the allowRedirects option to never be passed to any plugins, and as a result, isn't enforced. Misskey will follow redirects,...

CVE-2025-46553 @misskey-dev/summaly Redirect Filter Bypass

@misskey-dev/summaly is a tool for getting a summary of a web page. Starting in version 3.0.1 and prior to version 5.2.1, a logic error in the main summaly function causes the allowRedirects option to never be passed to any plugins, and as a result, isn't enforced. Misskey will follow redirects,...