registry / @docmentis/udoc-viewer / 0.7.8

@docmentis/udoc-viewer@0.7.8

Universal document viewer for the web — open-source, framework-agnostic viewer powered by a built-from-scratch WebAssembly engine for high-fidelity rendering across PDF, DOCX, PPTX, XLSX, CSV, SVG, and images.

Static Scan Results

scanned 2h ago · by rust-scanner

Static analysis flagged 8 finding(s) at 72.0% confidence. This version is warn-only unless an AI or security-team review confirms malicious behavior.

Static reason

One or more suspicious static signals were detected.

Decision evidence

public snapshot

Behavioral surface

Source

ChildProcessNetwork

Supply chain

HighEntropyStringsMinifiedUrlStrings

ManifestNo manifest risk signals triggered.

scanned 88 file(s), 1.33 MB of source, external domains: cdn.example.com, cdn.jsdelivr.net, registry.npmjs.org, www.w3.org

Source & flagged code

2 flagged

dist/src/ui/viewer/components/Branding.jsView file

Lines 1-30javascript

1/**

2 * "Powered by docMentis" branding component.

3 *

4 * Hardened against host-page CSS injection that tries to suppress the mark:

5 *

6 * - Visual content lives inside a closed shadow root, so external CSS

7 * (including `!important` rules) cannot select anything visible.

8 * - The light-DOM host wrapper carries a per-instance random class name,

9 * so attacker stylesheets cannot statically target it.

10 * - The literal docmentis.com URL is not rendered in any `href` attribute;

11 * a click handler decodes it from a base64 `data-h` attribute at runtime,

12 * defeating `a[href*="docmentis.com"]` selectors.

13 * - A MutationObserver re-inserts the host if it is removed from its parent.

14 * - For the persistent `viewport-corner` variant, a runtime visibility check

15 * (IntersectionObserver + ~2s setInterval inspection of getBoundingClientRect

16 * and getComputedStyle) trips a `udoc:branding-suppressed` CustomEvent and

17 * invokes the caller's onSuppressed hook so a watermark fallback can engage.

18 *

19 * Defense-in-depth, not silver bullets: a determined attacker with arbitrary

20 * JS access to the page can still tamper. The shadow root blocks CSS attacks;

21 * the visibility tripwire converts any successful suppression into a signal

22 * that downstream code (e.g. a rasterized watermark) can react to.

23 */

24// Capture `attachShadow` and `getComputedStyle` at module evaluation time so

25// later prototype patching by the host page does not affect us. Guarded for

26// non-DOM environments (SSR/Node) where the module may be imported but

27// `createBranding` will never be invoked.

28const __attachShadow = typeof Element !== "undefined" ? Element.prototype.attachShadow : undefined;

29const __getComputedStyle = typeof window !== "undefined" ? window.getComputedStyle.bind(window) : undefined;

30// "https://docmentis.com" — held base64 so `a[href*="docmentis.com"]` and

High

Base64 Obscured Url

Source decodes a Base64-obscured HTTP endpoint at runtime.

dist/src/ui/viewer/components/Branding.jsView on unpkg · L10

dist/src/wasm/udoc_bg.wasmView file

•path = dist/src/wasm/udoc_bg.wasm kind = wasm_module sizeBytes = 19056378 magicHex = [redacted]

Medium

Ships Wasm Module

Package ships WebAssembly modules.

dist/src/wasm/udoc_bg.wasmView on unpkg

Source & flagged code

2 flagged · loading source

dist/src/ui/viewer/components/Branding.jsView file

10* - The literal docmentis.com URL is not rendered in any `href` attribute; L11: * a click handler decodes it from a base64 `data-h` attribute at runtime, L12: * defeating `a[href*="docmentis.com"]` selectors. ... L29: const __getComputedStyle = typeof window !== "undefined" ? window.getComputedStyle.bind(window) : undefined; L30: // "https://docmentis.com" — held base64 so `a[href*="docmentis.com"]` and L31: // text-scans of the bundle do not find it on the rendered element. ... L70: const url = atob(link.dataset.h ?? ""); L71: window.open(url, "_blank", "noopener,noreferrer"); L72: }

High

Base64 Obscured Url

Source decodes a Base64-obscured HTTP endpoint at runtime.

dist/src/ui/viewer/components/Branding.jsView on unpkg · L10

dist/src/wasm/udoc_bg.wasmView file

•path = dist/src/wasm/udoc_bg.wasm kind = wasm_module sizeBytes = 19056378 magicHex = [redacted]

Medium

Ships Wasm Module

Package ships WebAssembly modules.

dist/src/wasm/udoc_bg.wasmView on unpkg

Findings

1 High3 Medium4 Low

HighBase64 Obscured Urldist/src/ui/viewer/components/Branding.js

MediumNetwork

MediumShips Wasm Moduledist/src/wasm/udoc_bg.wasm

MediumStructural Risk Force Deep Review

LowNon Install Lifecycle Scripts

LowScripts Present

LowHigh Entropy Strings

LowUrl Strings

Source & flagged code

2 flagged

dist/src/ui/viewer/components/Branding.jsView file

Lines 1-30javascript

1/**

2 * "Powered by docMentis" branding component.

3 *

4 * Hardened against host-page CSS injection that tries to suppress the mark:

5 *

6 * - Visual content lives inside a closed shadow root, so external CSS

7 * (including `!important` rules) cannot select anything visible.

8 * - The light-DOM host wrapper carries a per-instance random class name,

9 * so attacker stylesheets cannot statically target it.

10 * - The literal docmentis.com URL is not rendered in any `href` attribute;

11 * a click handler decodes it from a base64 `data-h` attribute at runtime,

12 * defeating `a[href*="docmentis.com"]` selectors.

13 * - A MutationObserver re-inserts the host if it is removed from its parent.

14 * - For the persistent `viewport-corner` variant, a runtime visibility check

15 * (IntersectionObserver + ~2s setInterval inspection of getBoundingClientRect

16 * and getComputedStyle) trips a `udoc:branding-suppressed` CustomEvent and

17 * invokes the caller's onSuppressed hook so a watermark fallback can engage.

18 *

19 * Defense-in-depth, not silver bullets: a determined attacker with arbitrary

20 * JS access to the page can still tamper. The shadow root blocks CSS attacks;

21 * the visibility tripwire converts any successful suppression into a signal

22 * that downstream code (e.g. a rasterized watermark) can react to.

23 */

24// Capture `attachShadow` and `getComputedStyle` at module evaluation time so

25// later prototype patching by the host page does not affect us. Guarded for

26// non-DOM environments (SSR/Node) where the module may be imported but

27// `createBranding` will never be invoked.

28const __attachShadow = typeof Element !== "undefined" ? Element.prototype.attachShadow : undefined;

29const __getComputedStyle = typeof window !== "undefined" ? window.getComputedStyle.bind(window) : undefined;

30// "https://docmentis.com" — held base64 so `a[href*="docmentis.com"]` and

High

Base64 Obscured Url

Source decodes a Base64-obscured HTTP endpoint at runtime.

dist/src/ui/viewer/components/Branding.jsView on unpkg · L10

dist/src/wasm/udoc_bg.wasmView file

•path = dist/src/wasm/udoc_bg.wasm kind = wasm_module sizeBytes = 19056378 magicHex = [redacted]

Medium

Ships Wasm Module

Package ships WebAssembly modules.

dist/src/wasm/udoc_bg.wasmView on unpkg