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CVE CVSS 8.1

Rocket.Chat: Any Authenticated User Can Permanently Deregister Workspace from Rocket.Chat Cloud via Unprotected `/api/v1/fingerprint` Endpoint_CVE-2026-55762

Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13, the POST /api/v1/fingerprint REST endpoint enforces authentication (authRequired: true) but performs no authorization check. Any a...

CVE-2026-55762 RocketChat Rocket.Chat >= 8.5.0-rc.0, < 8.5.1

Jun 24, 2026

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Recent Advisories

Severity	ID	Title	Vendor	Product	Date	Type
HIGH 7.4	CVE-2026-55759	Rocket.Chat: Apple Sign-In skips JWT claims validation, allowing expired and cross-audience token replay_CVE-2026-55759 Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13, ...	RocketChat	Rocket.Chat >= 8.5.0-rc.0, < 8.5.1	Jun 24, 2026	CVE
CRITICAL 9.3	CVE-2026-55666	Rocket.Chat: Email Parameter Fallback Leads To Account Takeover Within Apple OAuth_CVE-2026-55666 Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13, ...	RocketChat	Rocket.Chat >= 8.5.0-rc.0, < 8.5.1	Jun 24, 2026	CVE
CRITICAL 9	CVE-2026-55570	SiYuan: Stored XSS results to Electron RCE in SiYuan marketplace via unescaped `data-obj` attribute (Bypass for CVE-2026-45375’s patch)_CVE-2026-55570 SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, it does not escape the untrusted fields (name, version, author, desc...	siyuan-note	siyuan < 3.7.0	Jun 24, 2026	CVE
MEDIUM 5.3	CVE-2026-55455	Appsmith: SSRF in REST API / GraphQL datasource plugins via insufficient host denylist_CVE-2026-55455 Appsmith is a platform to build admin panels, internal tools, and dashboards. Prior to 2.1, the outbound HTTP host filter applied by WebClientUtils...	appsmithorg	appsmith < 2.1	Jun 24, 2026	CVE
CRITICAL 9.9	CVE-2026-55454	Appsmith: Caddy admin API exposed without authentication_CVE-2026-55454 Appsmith is a platform to build admin panels, internal tools, and dashboards. Prior to 2.1, the bundled Caddy reverse-proxy's admin API — which has...	appsmithorg	appsmith < 2.1	Jun 24, 2026	CVE
HIGH 8.7	CVE-2026-54759	SiYuan: Lute HTML sanitizer allows `` tags in Bazaar package README, leading to arbitrary command execution via SiYuan Electron client_CVE-2026-54759</span> </h3> <p class="advisory-desc" title="SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, Lute's HTML sanitizer does not remove elements. Combined with the SiYuan Electron client's permissive security configuration, an attacker can include a malicious in a Bazaar package README that executes arbitrary commands on the victim's machine when the package details are viewed. No package installation is required. This vulnerability is fixed in 3.7.0."> <span class="desc-text">SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, Lute's HTML sanitizer does not remove elements. Combined with the S...</span> </p> </a> </td> <td class="col-vendor"> siyuan-note </td> <td class="col-product"> siyuan <span class="product-version">< 3.7.0</span> </td> <td class="col-date"> <time class="advisory-date">Jun 24, 2026</time> </td> <td class="col-type"> <span class="advisory-type type-cve">CVE</span> </td> </tr> <tr class="advisory-row" data-post-id="65525"> <td class="col-severity"> <span class="severity-badge severity-critical"> CRITICAL <span class="cvss-score">9.9</span> </span> </td> <td class="col-id"> <span class="advisory-id" title="CVE-2026-54158"> CVE-2026-54158 </span> </td> <td class="col-title"> <a href="https://zero.redgem.net/?p=65525" class="advisory-title-link"> <h3 class="advisory-title" title="SiYuan: Stored XSS to RCE via attribute-view cell rendering in genAVValueHTML()_CVE-2026-54158"> <span class="title-text">SiYuan: Stored XSS to RCE via attribute-view cell rendering in genAVValueHTML()_CVE-2026-54158</span> </h3> <p class="advisory-desc" title="SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, the attribute-view (database) cell renderer genAVValueHTML interpolates cell content raw in four of its branches: text, url, phone, and mAsset. A cell value like or "> breaks out of its surrounding tag and runs arbitrary JavaScript in the renderer when the victim opens the block-attribute panel. On Electron desktop the renderer runs with nodeIntegration:true, so the XSS chains to host RCE via require('child_process'). AV files live under the workspace and ride normal sync, so an attacker with write access to any synced workspace plants the payload once and it fires on every device that opens a panel containing that row.he kernel doesn't escape on the way in either, so the malicious cell persists byte-for-byte. There's no equivalent of the html.EscapeAttrVal call that protects block IAL attributes at kernel/model/blockial.go:261. This vulnerability is fixed in 3.7.0."> <span class="desc-text">SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, the attribute-view (database) cell renderer genAVValueHTML interpola...</span> </p> </a> </td> <td class="col-vendor"> siyuan-note </td> <td class="col-product"> siyuan <span class="product-version">< 3.7.0</span> </td> <td class="col-date"> <time class="advisory-date">Jun 24, 2026</time> </td> <td class="col-type"> <span class="advisory-type type-cve">CVE</span> </td> </tr> <tr class="advisory-row" data-post-id="65524"> <td class="col-severity"> <span class="severity-badge severity-high"> HIGH <span class="cvss-score">7.1</span> </span> </td> <td class="col-id"> <span class="advisory-id" title="CVE-2026-54070"> CVE-2026-54070 </span> </td> <td class="col-title"> <a href="https://zero.redgem.net/?p=65524" class="advisory-title-link"> <h3 class="advisory-title" title="SiYuan: Stored XSS in Bazaar marketplace via package README event handlers_CVE-2026-54070"> <span class="title-text">SiYuan: Stored XSS in Bazaar marketplace via package README event handlers_CVE-2026-54070</span> </h3> <p class="advisory-desc" title="SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, renderPackageREADME in kernel/bazaar/readme.go renders a Bazaar package README from Markdown to HTML with the lute engine and SetSanitize(true). The lute sanitizer is an event-handler blocklist: allowAttr rejects only attribute names present in a fixed eventAttrs map copied from the w3schools legacy handler list. That map omits modern event handlers. onpointerover, onpointerdown, onauxclick, onbeforetoggle, onfocusin, onanimationstart, and ontransitionend are not in the list, so the sanitizer passes them through verbatim on any tag. The frontend assigns the rendered HTML to mdElement.innerHTML in app/src/config/bazaar.ts with no client-side DOMPurify on this path, into a normal element in the main document (no iframe, no sandbox). The kernel sends no Content-Security-Policy, X-Frame-Options, or X-Content-Type-Options header on any response, so an inline handler runs when its event fires. The README is rendered when an Administrator opens a package in Settings → Marketplace, after the one-time marketplace trust consent. Install is not required. Result: a third-party Bazaar package author runs JavaScript in the Administrator's authenticated SiYuan origin when the Administrator views and interacts with the package listing, and gains full control of the workspace. This vulnerability is fixed in 3.7.0."> <span class="desc-text">SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, renderPackageREADME in kernel/bazaar/readme.go renders a Bazaar pack...</span> </p> </a> </td> <td class="col-vendor"> siyuan-note </td> <td class="col-product"> siyuan <span class="product-version">< 3.7.0</span> </td> <td class="col-date"> <time class="advisory-date">Jun 24, 2026</time> </td> <td class="col-type"> <span class="advisory-type type-cve">CVE</span> </td> </tr> <tr class="advisory-row" data-post-id="65523"> <td class="col-severity"> <span class="severity-badge severity-critical"> CRITICAL <span class="cvss-score">9.2</span> </span> </td> <td class="col-id"> <span class="advisory-id" title="CVE-2026-54069"> CVE-2026-54069 </span> </td> <td class="col-title"> <a href="https://zero.redgem.net/?p=65523" class="advisory-title-link"> <h3 class="advisory-title" title="SiYuan: Unauthenticated Admin API Access via Blanket chrome-extension:// Origin Allowlist_CVE-2026-54069"> <span class="title-text">SiYuan: Unauthenticated Admin API Access via Blanket chrome-extension:// Origin Allowlist_CVE-2026-54069</span> </h3> <p class="advisory-desc" title="SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, SiYuan Note's kernel HTTP server unconditionally trusts all chrome-extension:// origins, granting RoleAdministrator access to every installed browser extension without any authentication. Combined with the default empty AccessAuthCode on desktop installs, any Chrome/Chromium extension -- including a compromised legitimate extension via supply chain attack -- can make fully authenticated admin API calls to the SiYuan kernel at 127.0.0.1:6806, enabling data exfiltration, stored XSS injection, and configuration tampering. This vulnerability is fixed in 3.7.0."> <span class="desc-text">SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, SiYuan Note's kernel HTTP server unconditionally trusts all chrome-e...</span> </p> </a> </td> <td class="col-vendor"> siyuan-note </td> <td class="col-product"> siyuan <span class="product-version">< 3.7.0</span> </td> <td class="col-date"> <time class="advisory-date">Jun 24, 2026</time> </td> <td class="col-type"> <span class="advisory-type type-cve">CVE</span> </td> </tr> </tbody> </table> </div> <nav class="pagination" role="navigation" aria-label="Posts navigation"> <div class="pagination-links"> <a class="prev page-numbers" href="https://zero.redgem.net/?paged=50&page=6281">← Prev</a> <a class="page-numbers" href="https://zero.redgem.net/?page=6281">1</a> <span class="page-numbers dots">…</span> <a class="page-numbers" href="https://zero.redgem.net/?paged=49&page=6281">49</a> <a class="page-numbers" href="https://zero.redgem.net/?paged=50&page=6281">50</a> <span aria-current="page" class="page-numbers current">51</span> <a class="page-numbers" href="https://zero.redgem.net/?paged=52&page=6281">52</a> <a class="page-numbers" href="https://zero.redgem.net/?paged=53&page=6281">53</a> <span class="page-numbers dots">…</span> <a class="page-numbers" href="https://zero.redgem.net/?paged=6569&page=6281">6,569</a> <a class="next page-numbers" href="https://zero.redgem.net/?paged=52&page=6281">Next →</a> </div> </nav> <div class="redgem-banner"> <div class="banner-content"> <div class="banner-icon"> <svg width="32" height="32" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5"><path d="M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z"/><path d="M9 12l2 2 4-4"/></svg> </div> <div class="banner-text"> <h3>Protect Your Attack Surface with RedGem</h3> <p>AI-powered asset discovery, dark web monitoring, CVE alerting, and vulnerability scanning — all in one platform.</p> </div> <div class="banner-actions"> <a href="https://www.redgem.net" class="btn-primary" target="_blank" rel="noopener">Start Free Trial</a> <a href="https://www.redgem.net/demo" class="btn-secondary" target="_blank" rel="noopener">Request Demo</a> </div> </div> </div> </div> </div> </main><!-- #primary --> </div><!-- #content --> <footer id="colophon" class="site-footer"> <div class="footer-accent"></div> <div class="container"> <div class="footer-top"> <div class="footer-brand"> <div class="footer-logo"> <img src="https://www.redgem.net/logo.png" alt="zero redgem" width="100" height="80" class="footer-logo-img" /> </div> <p class="footer-tagline">Your trusted source for security vulnerabilities, exploits, and CVE intelligence. 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Security IntelligenceFeed

Daily Security Trends (Last 14 Days)

Rocket.Chat: Any Authenticated User Can Permanently Deregister Workspace from Rocket.Chat Cloud via Unprotected `/api/v1/fingerprint` Endpoint_CVE-2026-55762

Recent Advisories

Rocket.Chat: Apple Sign-In skips JWT claims validation, allowing expired and cross-audience token replay_CVE-2026-55759

Rocket.Chat: Email Parameter Fallback Leads To Account Takeover Within Apple OAuth_CVE-2026-55666

SiYuan: Stored XSS results to Electron RCE in SiYuan marketplace via unescaped `data-obj` attribute (Bypass for CVE-2026-45375’s patch)_CVE-2026-55570

Appsmith: SSRF in REST API / GraphQL datasource plugins via insufficient host denylist_CVE-2026-55455

Appsmith: Caddy admin API exposed without authentication_CVE-2026-55454

Security Intelligence
Feed