registry / @prosopo/procaptcha-bundle / 4.6.4
@prosopo/procaptcha-bundle@4.6.4
AI Security Review
scanned 5d ago · by lpm-firewall-aiThe inspected entry points and helpers match the package’s CAPTCHA purpose. The only identified reporting is a documented Prosopo usage beacon limited to builds with a provider-list override, sampled at 0.1%, and disabled with PROSOPO_USAGE_BEACON=false.
Static reason
One or more suspicious static signals were detected.
Trigger
Importing the browser bundle installs page callbacks; widgets render when requested or when matching page elements are present. The usage beacon runs only during widget rendering and when its build and sampling conditions are met.
Impact
No credential collection, unrelated account action, install-time behavior, or concealed execution was found. The beacon reports limited widget usage metadata to Prosopo.
Mechanism
The bundle creates CAPTCHA widgets and may prefetch Prosopo detector resources. A dependency sends a sampled usage beacon to Prosopo containing the page hostname, site key, bundle version, and sample rate; its source documents the purpose and opt-out.
AI rationale
The inspected entry points and helpers match the package’s CAPTCHA purpose. The only identified reporting is a documented Prosopo usage beacon limited to builds with a provider-list override, sampled at 0.1%, and disabled with PROSOPO_USAGE_BEACON=false.
Network endpoints1
beacon.prosopo.io/v1/b.gif
Decision evidence
public snapshotAI called this Clean at 92.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- Package metadata identifies the Prosopo CAPTCHA bundle and declares no lifecycle scripts.
- The entry initializes page behavior capture, and detector prefetch requires a site key and is skipped in manual start mode.
- Environment variables configure the site key and Prosopo CAPTCHA environment/server settings.
- A Prosopo usage beacon sends only the site hostname, site key, bundle version, and sample rate.
- The beacon is limited to builds with PROSOPO_PROVIDER_LIST, sampled at 0.1%, and can be disabled with PROSOPO_USAGE_BEACON=false.
Evidence against
Behavioral surface
EnvironmentVarsFilesystem
HighEntropyStringsUrlStrings
Source & flagged code
6 flaggeddist/esm/index.jsView file
7package = @prosopo/procaptcha-bundle; repositoryIdentity = captcha; dependency = @prosopo/procaptcha-common
L7: import { WidgetThemeResolver } from "./util/widgetThemeResolver.js";
L8: import { getWindowCallback, startPageBehaviourCapture } from "@prosopo/procaptcha-common";
L9: import { PROCAPTCHA_START_EVENT, StartModeEnum } from "@prosopo/types";
High
Copied Package Dependency Bridge
Package metadata claims a different repository identity while copied source loads a runtime dependency bridge.
dist/esm/index.jsView on unpkg · L740ving a provider itself.
*/
var startDetectorPrefetch = (siteKey, flags, language, integration) => {
if (!siteKey) return;
if (flags.startMode === StartModeEnum.manual) return;
Promise.all([import("@prosopo/procaptcha-frictionless"), import("@prosopo/procaptcha-common")]).then(([frictionless, common]) => {
frictionless.prefetchDetector(process.env.PROSOPO_DEFAULT_ENVIRONMENT, common.pickIpMode(flags), siteKey, language, in
Low
Ai Review Evidence
The entry initializes page behavior capture, and detector prefetch requires a site key and is skipped in manual start mode.
dist/esm/index.jsView on unpkg · L40package.jsonView file
Findings
1 High2 Medium9 Low
HighCopied Package Dependency Bridgedist/esm/index.js
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
LowSuspicious Lifecycle Evidencepackage.json
LowAi Review Evidencedist/esm/index.js
LowAi Review Evidencedist/esm/util/configCreator.js
LowAi Review Evidence.lpm-dependency-evidence-b80f7381-1c44-4180-b799-337e188e1307/2/npm-linux/dist/esm/usageBeacon.js
LowAi Review Evidence.lpm-dependency-evidence-b80f7381-1c44-4180-b799-337e188e1307/2/npm-linux/dist/esm/usageBeacon.js
Affected versions and remediation
This report applies to @prosopo/procaptcha-bundle@4.6.4.
See all versions of @prosopo/procaptcha-bundle for other recorded verdicts.
- Review the evidence and your use of @prosopo/procaptcha-bundle@4.6.4 before allowing it. Restrict the permissions described in this report.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
Evidence last updated: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.