CVE-2021-47931: Improper Neutralization of Input During Web Page Generation

Exponent CMS 2.6 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts through the Title and Text Block parameters in the text editing endpoint. Attackers can inject iframe payloads with embedded SVG onload events to execute arbitrary...

CVE-2026-41886

locize is a localization platform that connects code and i18n setup. Prior to version 4.0.21, the locize client SDK registers a window.addEventListener"message", … handler that dispatches to registered internal handlers editKey, commitKey, commitKeys, isLocizeEnabled, requestInitialize, … without...

CLSA-2026-1778129164 nghttp2: Fix of 2 CVEs

CVE-2023-35945: fix memory leak on RSTSTREAM followed by GOAWAY - CVE-2026-27135: fix iframe state validation to prevent assertion failure...

Cross-site Scripting (XSS)

Overview wwbn/avideo is an Audio and Video Platform or simply "A Video Platform". Affected versions of this package are vulnerable to Cross-site Scripting XSS in the plugin/Meet/iframe.php process when unescaped user and pass parameters are reflected into a JavaScript string literal. An attacker...

Video: Reflected XSS in plugin/Meet/iframe.php via Unescaped user and pass Parameters in JavaScript String Literal

Summary plugin/Meet/iframe.php echoes the attacker-controlled user and pass query parameters unescaped into a JavaScript double-quoted string literal inside a block. An attacker who sends a victim to a crafted URL can break out of the string and execute arbitrary JavaScript in the victim's browse...

GHSA-MM5F-8Q57-4FC4 Video: Reflected XSS in plugin/Meet/iframe.php via Unescaped user and pass Parameters in JavaScript String Literal

Summary plugin/Meet/iframe.php echoes the attacker-controlled user and pass query parameters unescaped into a JavaScript double-quoted string literal inside a block. An attacker who sends a victim to a crafted URL can break out of the string and execute arbitrary JavaScript in the victim's browse...

CLSA-2026-1777974095 nghttp2: Fix of CVE-2026-27135

CVE-2026-27135: fix missing iframe-state validations to avoid assertion failure...

PT-2026-37294

Name of the Vulnerable Software and Affected Versions AVideo versions prior to 29.1 Description An issue exists where the 'plugin/Meet/iframe.php' endpoint echoes the user and pass query parameters unescaped into a JavaScript double-quoted string literal within a block. This allows an attacker to...

PT-2026-36859

Name of the Vulnerable Software and Affected Versions Notesnook Web/Desktop versions prior to 3.3.15 Notesnook iOS/Android versions prior to 3.3.20 Description A stored Cross-Site Scripting XSS issue exists in the note export flow. The problem occurs because exported note fields, including title,...

DOMPurify: FORBID_TAGS bypassed by function-based ADD_TAGS predicate (asymmetry with FORBID_ATTR fix)

There is an inconsistency between FORBIDTAGS and FORBIDATTR handling when function-based ADDTAGS is used. Commit c361baa added an early exit for FORBIDATTR at line 1214: / FORBIDATTR must always win, even if ADDATTR predicate would allow it / if FORBIDATTRlcName return false; The same fix was not...

CVE-2026-40925 WWBN AVideo has CSRF in configurationUpdate.json.php Enables Full Site Configuration Takeover Including Encoder URL and SMTP Credentials

WWBN AVideo is an open source video platform. In versions 29.0 and prior, objects/configurationUpdate.json.php also routed via /updateConfig persists dozens of global site settings from $POST but protects the endpoint only with User::isAdmin. It does not call forbidIfIsUntrustedRequest, does not...

CVE-2026-40922

SiYuan is an open-source personal knowledge management system. In versions 3.6.1 through 3.6.3, a prior fix for XSS in bazaar README rendering incomplete fix for CVE-2026-33066 enabled the Lute HTML sanitizer, but the sanitizer does not block iframe tags, and its URL-prefix blocklist does not...

CVE-2026-40922

SiYuan is an open-source personal knowledge management system. In versions 3.6.1 through 3.6.3, a prior fix for XSS in bazaar README rendering incomplete fix for CVE-2026-33066 enabled the Lute HTML sanitizer, but the sanitizer does not block iframe tags, and its URL-prefix blocklist does not...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS through incomplete sanitization of the README rendering process in the marketplace UI. An attacker can execute arbitrary scripts in the Electron context with full application privileges by embedding an iframe ta...

CVE-2026-40922: Improper Neutralization of Input During Web Page Generation

SiYuan is an open-source personal knowledge management system. In versions 3.6.1 through 3.6.3, a prior fix for XSS in bazaar README rendering incomplete fix for CVE-2026-33066 enabled the Lute HTML sanitizer, but the sanitizer does not block iframe tags, and its URL-prefix blocklist does not...

SiYuan security vulnerabilities

SiYuan is an open-source personal knowledge management system developed by SiYuan itself. Versions of SiYuan from 3.6.1 to 3.6.3 have security vulnerabilities. These vulnerabilities stem from the Lute HTML cleanup program not preventing the use of iframe tags, and the URL prefixing mechanism not...

CVE-2026-40922

CVE-2026-40922 (SiYuan) : In SiYuan versions 3.6.1–3.6.3, an incomplete sanitization of bazaar README rendering allowed stored XSS via iframe srcdoc, escaping Lute HTML sanitizer and enabling embedded scripts to run in the Electron context with full app privileges. The issue stems from the saniti...

CVE-2026-40922 SiYuan: Incomplete sanitization of bazaar README allows stored XSS via iframe srcdoc (incomplete fix for CVE-2026-33066)

SiYuan is an open-source personal knowledge management system. In versions 3.6.1 through 3.6.3, a prior fix for XSS in bazaar README rendering incomplete fix for CVE-2026-33066 enabled the Lute HTML sanitizer, but the sanitizer does not block iframe tags, and its URL-prefix blocklist does not...

CVE-2026-40922 SiYuan: Incomplete sanitization of bazaar README allows stored XSS via iframe srcdoc (incomplete fix for CVE-2026-33066)

SiYuan is an open-source personal knowledge management system. In versions 3.6.1 through 3.6.3, a prior fix for XSS in bazaar README rendering incomplete fix for CVE-2026-33066 enabled the Lute HTML sanitizer, but the sanitizer does not block iframe tags, and its URL-prefix blocklist does not...

CVE-2026-40922 SiYuan: Incomplete sanitization of bazaar README allows stored XSS via iframe srcdoc (incomplete fix for CVE-2026-33066)

SiYuan is an open-source personal knowledge management system. In versions 3.6.1 through 3.6.3, a prior fix for XSS in bazaar README rendering incomplete fix for CVE-2026-33066 enabled the Lute HTML sanitizer, but the sanitizer does not block iframe tags, and its URL-prefix blocklist does not...