CVE-2026-54743 Lemmy: Stored XSS via markdown image alt-text in lemmy-ui html5-embed

Lemmy is a link aggregator and forum for the fediverse. Prior to lemmy-ui 0.19.19-beta.1, LemmyNet/lemmy-ui renders Markdown in src/shared/markdown.ts for post bodies, comment bodies, private messages, and community and site sidebars through mdToHtml, which returns a raw html object that Inferno...

CVE-2026-54743 Lemmy: Stored XSS via markdown image alt-text in lemmy-ui html5-embed

Lemmy is a link aggregator and forum for the fediverse. Prior to lemmy-ui 0.19.19-beta.1, LemmyNet/lemmy-ui renders Markdown in src/shared/markdown.ts for post bodies, comment bodies, private messages, and community and site sidebars through mdToHtml, which returns a raw html object that Inferno...

EUVD-2026-62848

Lemmy is a link aggregator and forum for the fediverse. Prior to lemmy-ui 0.19.19-beta.1, LemmyNet/lemmy-ui renders Markdown in src/shared/markdown.ts for post bodies, comment bodies, private messages, and community and site sidebars through mdToHtml, which returns a raw html object that Inferno...

CVE-2026-54743

Lemmy (a fediverse link aggregator and forum) is affected by a stored XSS in lemmy-ui prior to version 0.19.19-beta.1 . The root cause lies in src/shared/markdown.ts, where mdToHtml returns a raw __html object injected by Inferno without a sanitizer pass. The [email protected] plugin,...

CVE-2026-68899

Wekan is open source kanban built with Meteor. Prior to 9.90, isFileValid in models/fileValidation.js used the Unix file command for content-based MIME detection, but detectMimeFromFile silently returned undefined when that binary was unavailable and the validation fell back to the...

CVE-2026-55090

Etherpad is a real-time collaborative editor. Prior to 3.3.0, getHTMLFromAtext in src/node/utils/ExportHtml.ts interpolates values from the exportHtmlAdditionalTagsWithData plugin hook into span data attributes without HTML attribute escaping. A pad editor can place an attacker-controlled value...

CVE-2026-55085

Etherpad is a real-time collaborative editor. Prior to 3.3.1, result.appendSpan in src/static/js/domline.ts interpolates the start attribute of a numbered list directly into an unquoted ol start attribute before assigning the generated markup to node.innerHTML. ImportEtherpad.setPadRaw in...

CVE-2026-55087

Etherpad is a real-time collaborative editor. From 2.1.0 until 3.1.0, Etherpad uses the attacker-controlled x-proxy-path request header in src/node/hooks/express/admin.ts when substituting paths into HTML, JavaScript, and CSS under /admin without sanitization, Vary: x-proxy-path, or Cache-Control...

CVE-2026-55085 Etherpad: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in etherpad-lite

Etherpad is a real-time collaborative editor. Prior to 3.3.1, result.appendSpan in src/static/js/domline.ts interpolates the start attribute of a numbered list directly into an unquoted ol start attribute before assigning the generated markup to node.innerHTML. ImportEtherpad.setPadRaw in...

EUVD-2026-62740

Etherpad is a real-time collaborative editor. Prior to 3.3.1, result.appendSpan in src/static/js/domline.ts interpolates the start attribute of a numbered list directly into an unquoted ol start attribute before assigning the generated markup to node.innerHTML. ImportEtherpad.setPadRaw in...

Snipe-IT: Stored DOM XSS via table selected-count IDs

Impact The table component derives data-selected-count-id from the component $name value. On manufacturer and supplier detail pages, stored manufacturer or supplier names are passed into affected table components as that name value. The client-side JavaScript later reads the browser-decoded...

GHSA-C8QC-WF67-342W Snipe-IT: Stored DOM XSS via table selected-count IDs

Impact The table component derives data-selected-count-id from the component $name value. On manufacturer and supplier detail pages, stored manufacturer or supplier names are passed into affected table components as that name value. The client-side JavaScript later reads the browser-decoded...

CVE-2026-55090 Etherpad: Stored XSS in HTML export via unescaped attribute-pool values

Etherpad is a real-time collaborative editor. Prior to 3.3.0, getHTMLFromAtext in src/node/utils/ExportHtml.ts interpolates values from the exportHtmlAdditionalTagsWithData plugin hook into span data attributes without HTML attribute escaping. A pad editor can place an attacker-controlled value...

CVE-2026-55090 Etherpad: Stored XSS in HTML export via unescaped attribute-pool values

Etherpad is a real-time collaborative editor. Prior to 3.3.0, getHTMLFromAtext in src/node/utils/ExportHtml.ts interpolates values from the exportHtmlAdditionalTagsWithData plugin hook into span data attributes without HTML attribute escaping. A pad editor can place an attacker-controlled value...

CVE-2026-55090

Etherpad (real-time collaborative editor) versions prior to 3.3.0 are vulnerable to stored cross-site scripting in the HTML export feature. The root cause is in getHTMLFromAtext in src/node/utils/ExportHtml.ts, which interpolates values from the exportHtmlAdditionalTagsWithData plugin hook into s...

EUVD-2026-62721

Etherpad is a real-time collaborative editor. From 2.1.0 until 3.1.0, Etherpad uses the attacker-controlled x-proxy-path request header in src/node/hooks/express/admin.ts when substituting paths into HTML, JavaScript, and CSS under /admin without sanitization, Vary: x-proxy-path, or Cache-Control...

CVE-2026-55087

In ep_etherpad-lite versions 2.1.0 through 3.0.0, the attacker-controlled x-proxy-path header is reflected unsanitized into admin HTML/JS/CSS (CWE-79) and into a redirect Location header (CWE-601), enabling cache-poisoning XSS and open-redirect attacks when client-supplied headers reach Etherpad....

CVE-2026-55087 Etherpad: x-proxy-path header reflected into admin HTML/JS/CSS (cache-poisoning XSS) and concatenated into redirect (open-redirect)

Etherpad is a real-time collaborative editor. From 2.1.0 until 3.1.0, Etherpad uses the attacker-controlled x-proxy-path request header in src/node/hooks/express/admin.ts when substituting paths into HTML, JavaScript, and CSS under /admin without sanitization, Vary: x-proxy-path, or Cache-Control...

CVE-2026-68900 Wekan: Stored XSS in HTML board exports through a card-title second parse

Wekan is open source kanban built with Meteor. From 8.72 until 10.23, addBoardHTMLToZip in client/lib/exportHTML.js read a card title and body through textContent, which decoded entity-encoded markup, and then interpolated titleText and allText into content.innerHTML in the exported index.html. A...

CVE-2026-68900

Wekan versions 8.72 to 10.22 are affected by a stored XSS in HTML board exports: addBoardHTMLToZip() in client/lib/exportHTML.js used textContent to read card titles, decoded entity-encoded markup, then interpolated it into content.innerHTML of the exported index.html, enabling a board member to ...