SiYuan <= v3.5.9 - Cross Site Scripting

SiYuan v3.5.10 contains a reflected XSS caused by improper sanitization of javascript: href attributes allowing ASCII control characters to bypass prefix checks in SVG sanitizer, letting unauthenticated attackers execute JavaScript via /api/icon/getDynamicIcon. id: CVE-2026-31809 info: name: SiYu...

svg-sanitizer: Mixed-case xlink:HrEf skips the `<use>` nesting-DoS check in Resolver::processReferences

Summary Resolver::processReferences collects elements with the XPath predicate use@href or @xlink:href, which is case sensitive. A element written as xlink:HrEf is therefore never added to the reference graph, so the nesting-DoS nullification never marks it for removal...

CVE-2026-107380

savg-sanitizer is a PHP SVG/XML sanitizer. Prior to 1.0.0, svg-sanitizer's isHrefSafeValue validates an SVG href after XML DTD entity expansion, but saveXML serializes the original entity reference after removing the DTD declaration. A crafted entity such as Tab can appear to the sanitizer as a...

CVE-2026-107379

savg-sanitizer is a PHP SVG/XML sanitizer. Prior to 1.0.0, svg-sanitizer allows a crafted SVG DTD with a FIXED attribute default to make cleanAttributesOnWhitelist perform a double DOMElement::removeAttribute call on the same attribute name in src/Sanitizer.php. The first removal deletes the...

CVE-2026-107380

The savg-sanitizer PHP SVG/XML sanitizer is vulnerable to Stored XSS in versions prior to 1.0.0 . The issue stems from a discrepancy between isHrefSafeValue(), which validates href attributes after XML DTD entity expansion, and saveXML(), which serializes the original entity reference after remov...

EUVD-2026-95137

savg-sanitizer is a PHP SVG/XML sanitizer. Prior to 1.0.0, svg-sanitizer's isHrefSafeValue validates an SVG href after XML DTD entity expansion, but saveXML serializes the original entity reference after removing the DTD declaration. A crafted entity such as Tab can appear to the sanitizer as a...

CVE-2026-107380 enshrined/svg-sanitize: Stored XSS via DTD Entity / HTML5 Named Character Reference Collision

savg-sanitizer is a PHP SVG/XML sanitizer. Prior to 1.0.0, svg-sanitizer's isHrefSafeValue validates an SVG href after XML DTD entity expansion, but saveXML serializes the original entity reference after removing the DTD declaration. A crafted entity such as Tab can appear to the sanitizer as a...

EUVD-2026-95136

savg-sanitizer is a PHP SVG/XML sanitizer. Prior to 1.0.0, svg-sanitizer allows a crafted SVG DTD with a FIXED attribute default to make cleanAttributesOnWhitelist perform a double DOMElement::removeAttribute call on the same attribute name in src/Sanitizer.php. The first removal deletes the...

CVE-2026-107379

The PHP SVG/XML sanitizer svg-sanitizer is vulnerable in versions prior to 1.0.0 due to a flaw in the src/Sanitizer.php file. Specifically, a crafted SVG DTD with a #FIXED attribute default can cause the cleanAttributesOnWhitelist() function to perform a double DOMElement::removeAttribute() call ...

CVE-2026-107379 enshrined/svg-sanitize: Denial of Service via DTD Attribute Declaration Crash

savg-sanitizer is a PHP SVG/XML sanitizer. Prior to 1.0.0, svg-sanitizer allows a crafted SVG DTD with a FIXED attribute default to make cleanAttributesOnWhitelist perform a double DOMElement::removeAttribute call on the same attribute name in src/Sanitizer.php. The first removal deletes the...

GO-2026-6364 SiYuan: Stored and reflected XSS in SiYuan through an SVG sanitizer bypass in github.com/siyuan-note/siyuan/kernel

SiYuan: Stored and reflected XSS in SiYuan through an SVG sanitizer bypass in github.com/siyuan-note/siyuan/kernel...

SiYuan: Stored and reflected XSS in SiYuan through an SVG sanitizer bypass

Summary SiYuan cleans user supplied SVG with util.SanitizeSVG before it serves the file inline as image/svg+xml. This cleaner is the guard behind the Editor.AllowSVGScript setting, which is off by default, so a inside an SVG is meant to be removed. The cleaner reads the input as HTML, but the...

GHSA-99RQ-75J6-5J9F SiYuan: Stored and reflected XSS in SiYuan through an SVG sanitizer bypass

Summary SiYuan cleans user supplied SVG with util.SanitizeSVG before it serves the file inline as image/svg+xml. This cleaner is the guard behind the Editor.AllowSVGScript setting, which is off by default, so a inside an SVG is meant to be removed. The cleaner reads the input as HTML, but the...

Snipe-IT vulnerable to stored XSS via inline-served attachment

Impact A low-privilege user can store an active-content payload as an asset attachment and have it served inline, same-origin, with an active Content-Type, achieving stored XSS. The application sanitizes uploads only when PHP finfo detects image/svg+xml. By submitting an XHTML document whose finf...

CVE-2026-74908

Grav plugin-api before 1.0.15 contains a script injection vulnerability where the SVG sanitizer only checks for the exact extension 'svg', allowing .svgz and .xhtml files to bypass sanitization and be stored unsanitized. Attackers with api.media.write permission can upload files containing...

CVE-2026-74908 Grav plugin-api before 1.0.15 Script Injection via SVG

Grav plugin-api before 1.0.15 contains a script injection vulnerability where the SVG sanitizer only checks for the exact extension 'svg', allowing .svgz and .xhtml files to bypass sanitization and be stored unsanitized. Attackers with api.media.write permission can upload files containing...

EUVD-2026-60589

Grav plugin-api before 1.0.15 contains a script injection vulnerability where the SVG sanitizer only checks for the exact extension 'svg', allowing .svgz and .xhtml files to bypass sanitization and be stored unsanitized. Attackers with api.media.write permission can upload files containing...

CVE-2026-74908 Grav plugin-api before 1.0.15 Script Injection via SVG

Grav plugin-api before 1.0.15 contains a script injection vulnerability where the SVG sanitizer only checks for the exact extension 'svg', allowing .svgz and .xhtml files to bypass sanitization and be stored unsanitized. Attackers with api.media.write permission can upload files containing...

CVE-2026-74908

Grav plugin-api before 1.0.15 contains a script injection vulnerability where the SVG sanitizer only checks for the exact extension 'svg', allowing .svgz and .xhtml files to bypass sanitization and be stored unsanitized. Attackers with api.media.write permission can upload files containing...

CVE-2026-74908

Grav plugin-api before version 1.0.15 has a script injection flaw: its SVG sanitizer checks only the exact extension "svg", so attackers with api.media.write permission can upload .svgz or .xhtml files with script payloads that bypass sanitization and execute in the site origin when accessed. CVS...