view_component: Preview Route Can Dispatch Inherited Helper Methods

Summary The preview route derives an example name from the URL and calls it with publicsend. The code does not verify that the requested method is one of the preview examples explicitly defined by the preview class. As a result, inherited public methods on ViewComponent::Preview are...

CVE-2026-42556

Postiz is an AI social media scheduling tool. From version 2.21.6 to before version 2.21.7, any authenticated user who can create a post can store arbitrary HTML in post content by tampering their own save request and send the public preview link /p/?share=true to another user. The preview page...

CVE-2026-42556 Postiz stored XSS in public preview page

Postiz is an AI social media scheduling tool. From version 2.21.6 to before version 2.21.7, any authenticated user who can create a post can store arbitrary HTML in post content by tampering their own save request and send the public preview link /p/?share=true to another user. The preview page...

CVE-2026-42556

Postiz is an AI social media scheduling tool. From version 2.21.6 to before version 2.21.7, any authenticated user who can create a post can store arbitrary HTML in post content by tampering their own save request and send the public preview link /p/?share=true to another user. The preview page...

EUVD-2026-28866

Postiz is an AI social media scheduling tool. From version 2.21.6 to before version 2.21.7, any authenticated user who can create a post can store arbitrary HTML in post content by tampering their own save request and send the public preview link /p/?share=true to another user. The preview page...

CVE-2026-42556

Postiz (AI social media tool) is affected from v2.21.6 up to, but not including, v2.21.7. An authenticated user who can create posts can tamper their own save request to store arbitrary HTML in post content. When a user visits the public preview link /p/?share=true, the preview renders the stored...

CVE-2026-42556 Postiz stored XSS in public preview page

Postiz is an AI social media scheduling tool. From version 2.21.6 to before version 2.21.7, any authenticated user who can create a post can store arbitrary HTML in post content by tampering their own save request and send the public preview link /p/?share=true to another user. The preview page...

CVE-2026-42556 Postiz stored XSS in public preview page

Postiz is an AI social media scheduling tool. From version 2.21.6 to before version 2.21.7, any authenticated user who can create a post can store arbitrary HTML in post content by tampering their own save request and send the public preview link /p/?share=true to another user. The preview page...

GHSA-JWF8-PV5P-VHMC Open WebUI has stored XSS in Excel file preview

Summary Excel file attachments are previewed in an unsafe way. A crafted XLSX file payload can be used to cause the sheetjs function sheettohtml to embed an XSS payload into the generated HTML. This is subsequently added to the DOM unsanitized via @html causing the payload to trigger. Details The...

Open WebUI has stored XSS in Excel file preview

Summary Excel file attachments are previewed in an unsafe way. A crafted XLSX file payload can be used to cause the sheetjs function sheettohtml to embed an XSS payload into the generated HTML. This is subsequently added to the DOM unsanitized via @html causing the payload to trigger. Details The...

Cross-site Scripting (XSS)

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Cross-site Scripting XSS in the process that previews Excel file attachments using the sheettohtml function. An attacker can execute arbitrary scripts in the context of the victim's browser by uploading a...

CVE-2026-42181

Lemmy prior to 0.19.18 is vulnerable to SSRF through post link metadata: the system validates the top-level URL against internal ranges, but the og:image URL extracted from the page is not subjected to the same restriction. An authenticated low-privileged user can post a page whose og:image point...

EUVD-2026-28587

SEPPmail Secure Email Gateway before version 15.0.4 contains an unauthenticated path traversal vulnerability in the identifier parameter of /api.app/attachment/preview that allows remote attackers to read arbitrary local files and trigger deletion of files in the targeted directory with the...

CVE-2026-44127

SEPPmail Secure Email Gateway before version 15.0.4 contains an unauthenticated path traversal vulnerability in the identifier parameter of /api.app/attachment/preview that allows remote attackers to read arbitrary local files and trigger deletion of files in the targeted directory with the...

CVE-2026-44127 Local File Inclusion (LFI) and Arbitrary File Deletion

SEPPmail Secure Email Gateway before version 15.0.4 contains an unauthenticated path traversal vulnerability in the identifier parameter of /api.app/attachment/preview that allows remote attackers to read arbitrary local files and trigger deletion of files in the targeted directory with the...

CVE-2026-44127 Local File Inclusion (LFI) and Arbitrary File Deletion

SEPPmail Secure Email Gateway before version 15.0.4 contains an unauthenticated path traversal vulnerability in the identifier parameter of /api.app/attachment/preview that allows remote attackers to read arbitrary local files and trigger deletion of files in the targeted directory with the...

SEPPmail Secure Email Gateway 安全漏洞

SEPPmail Secure Email Gateway is an email security gateway developed by the German company SEPPmail. Versions of SEPPmail Secure Email Gateway prior to version 15.0.4 contained a security vulnerability. This vulnerability stemmed from the identifier parameter in/api/app/attachment/preview, where...

PT-2026-38959

Name of the Vulnerable Software and Affected Versions SEPPmail Secure Email Gateway versions prior to 15.0.4 Description An unauthenticated path traversal issue exists in the '/api.app/attachment/preview' endpoint. This allows remote attackers to read arbitrary local files and trigger the deletio...

Gitroom Postiz 跨站脚本漏洞

Gitroom Postiz is an open-source social media scheduling tool developed by Gitroom. Versions of Gitroom Postiz from 2.21.6 to 2.21.7 contained a cross-site scripting vulnerability. This vulnerability allowed any authenticated user to store arbitrary HTML in post content by manipulating saved...

PT-2026-39302

Name of the Vulnerable Software and Affected Versions view component versions 3.0.0 through 4.8.x Description The preview route derives an example name from the URL and invokes it using public send without verifying if the requested method is an explicitly defined preview example. This allows...