CVE-2026-27210 Pannellum has a XSS vulnerability in hot spot attributes

Pannellum is a lightweight, free, and open source panorama viewer for the web. In versions 3.5.0 through 2.5.6, the hot spot attributes configuration property allowed any attribute to be set, including HTML event handler attributes, allowing for potential XSS attacks. This affects websites hostin...

CVE-2026-27210 Pannellum has a XSS vulnerability in hot spot attributes

Pannellum is a lightweight, free, and open source panorama viewer for the web. In versions 3.5.0 through 2.5.6, the hot spot attributes configuration property allowed any attribute to be set, including HTML event handler attributes, allowing for potential XSS attacks. This affects websites hostin...

CVE-2026-27210

CVE-2026-27210 | Pannellum XSS has concrete details in the connected documents. Affected: Pannellum core viewer (versions 3.5.0 through 2.5.6) where the hot spot attributes configuration property could be set to any attribute, including HTML event handlers, enabling potential XSS when using untru...

CVE-2026-27121

svelte performance oriented web framework. Versions of svelte prior to 5.51.5 are vulnerable to cross-site scripting XSS during server-side rendering. When using spread syntax to render attributes from untrusted data, event handler properties are included in the rendered HTML output. If an...

CVE-2026-27121 Svelte affected by cross-site scripting via spread attributes in Svelte SSR

svelte performance oriented web framework. Versions of svelte prior to 5.51.5 are vulnerable to cross-site scripting XSS during server-side rendering. When using spread syntax to render attributes from untrusted data, event handler properties are included in the rendered HTML output. If an...

CVE-2026-27121

Technical details for CVE-2026-27121 are not publicly available in the provided documents. Monitor for updates.

CVE-2026-27121 Svelte affected by cross-site scripting via spread attributes in Svelte SSR

svelte performance oriented web framework. Versions of svelte prior to 5.51.5 are vulnerable to cross-site scripting XSS during server-side rendering. When using spread syntax to render attributes from untrusted data, event handler properties are included in the rendered HTML output. If an...

CVE-2026-27121

svelte performance oriented web framework. Versions of svelte prior to 5.51.5 are vulnerable to cross-site scripting XSS during server-side rendering. When using spread syntax to render attributes from untrusted data, event handler properties are included in the rendered HTML output. If an...

CVE-2026-27121 Svelte affected by cross-site scripting via spread attributes in Svelte SSR

svelte performance oriented web framework. Versions of svelte prior to 5.51.5 are vulnerable to cross-site scripting XSS during server-side rendering. When using spread syntax to render attributes from untrusted data, event handler properties are included in the rendered HTML output. If an...

CVE-2026-27120

Leafkit is a templating language with Swift-inspired syntax. Prior to 1.4.1, htmlEscaped in leaf-kit will only escape html special characters if the extended grapheme clusters match, which allows bypassing escaping by using an extended grapheme cluster containing both the special html character a...

CVE-2026-27120 Leaf-kit html escaping does not work on characters that are part of extended grapheme cluster

Leafkit is a templating language with Swift-inspired syntax. Prior to 1.4.1, htmlEscaped in leaf-kit will only escape html special characters if the extended grapheme clusters match, which allows bypassing escaping by using an extended grapheme cluster containing both the special html character a...

CVE-2026-27013

Fabric.js is a Javascript HTML5 canvas library. Prior to version 7.2.0, Fabric.js applies escapeXml to text content during SVG export src/shapes/Text/TextSVGExportMixin.ts:186 but fails to apply it to other user-controlled string values that are interpolated into SVG attribute markup. When...

CVE-2026-2718

The Dealia – Request a Quote plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Gutenberg block attributes in all versions up to, and including, 1.0.8. This is due to the use of wpkses for output escaping within HTML attribute contexts where escattr is required. This makes it...

Cross-site Scripting (XSS)

Overview pannellum is a lightweight, free, and open source panorama viewer for the web. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the attributes configuration property in hot spots. An attacker can execute arbitrary JavaScript code by supplying a malicious...

Pannellum has a XSS vulnerability in hot spot attributes

Impact The hot spot attributes configuration property allowed any attribute to be set, including HTML event handler attributes, allowing for potential XSS attacks. This affects websites hosting the standalone viewer HTML file and any other use of untrusted JSON config files bypassing the...

Cross-site Scripting (XSS)

Overview org.webjars.npm:pannellum is a lightweight, free, and open source panorama viewer for the web. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the attributes configuration property in hot spots. An attacker can execute arbitrary JavaScript code by supplyi...

GHSA-8423-W5WX-H2R6 Pannellum has a XSS vulnerability in hot spot attributes

Impact The hot spot attributes configuration property allowed any attribute to be set, including HTML event handler attributes, allowing for potential XSS attacks. This affects websites hosting the standalone viewer HTML file and any other use of untrusted JSON config files bypassing the...

GHSA-CRPF-4HRX-3JRP Svelte SSR attribute spreading includes inherited properties from prototype chain

In server-side rendering, attribute spreading on elements e.g. enumerates inherited properties from the object's prototype chain rather than only own properties. In environments where Object.prototype has already been polluted — a precondition outside of Svelte's control — this can cause unexpect...

CVE-2026-27013

Fabric.js is a Javascript HTML5 canvas library. Prior to version 7.2.0, Fabric.js applies escapeXml to text content during SVG export src/shapes/Text/TextSVGExportMixin.ts:186 but fails to apply it to other user-controlled string values that are interpolated into SVG attribute markup. When...

GHSA-4HFH-FCH3-5Q7P Leaf-kit html escaping does not work on characters that are part of extended grapheme cluster

Summary htmlEscaped in leaf-kit will only escape html special characters if the extended grapheme clusters match, which allows bypassing escaping by using an extended grapheme cluster containing both the special html character and some additional characters. In the case of html attributes, this c...