@browserstack/accessibility-devtools@1.5.3
Command-line interface for BrowserStack Accessibility DevTools
AI Security Review
scanned 1d ago · by lpm-firewall-aiThe CLI automatically sends scan events to BrowserStack’s analytics endpoint, including the BrowserStack username and account/session identifiers. No disclosure or opt-out was evident in the inspected package documentation, so this is suspicious telemetry rather than a malicious attack.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Running the CLI starts analytics before authentication and scanning.
Impact
BrowserStack receives identifying usage telemetry without disclosure or an evident opt-out in the inspected package documentation.
Mechanism
The CLI sends a scan-start event containing the BrowserStack username and an account/session-associated analytics payload to eds.browserstack.com.
AI rationale
The CLI automatically sends scan events to BrowserStack’s analytics endpoint, including the BrowserStack username and account/session identifiers. No disclosure or opt-out was evident in the inspected package documentation, so this is suspicious telemetry rather than a malicious attack.
Evidence
index.cjs
Network endpoints2
eds.browserstack.com:443/send_eventwss://devtools-a11y-linter.browserstack.com/ws
Decision evidence
public snapshotAI called this Suspicious at 84.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- The manifest has no install lifecycle scripts; it exposes index.cjs as the CLI.
- CLI startup initializes analytics and calls trackStart before authentication.
- The scan-start event includes the BrowserStack username, and analytics payloads include account and session identifiers plus event data.
- Analytics are posted to eds.browserstack.com on /send_event.
Evidence against
- The package is an accessibility linting CLI, and its documented function requires users to run scans.
- The linter connects to BrowserStack’s accessibility service; sending files there supports the package’s stated feature.
- The manifest declares no dependencies or install scripts.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetworkShell
HighEntropyStringsMinifiedPossibleObfuscationUrlStrings
Source & flagged code
8 flaggedindex.cjsView file
8`;for(let f=1;f<=t.linesAfter&&!(o+f>=i.length);f++){let d=Gn(e.buffer,r[o+f],i[o+f],e.position-(r[o]-r[o+f]),c);l+=ut.repeat(" ",t.indent)+kn((e.line+f+1).toString(),a)+" | "+d.st...
L9: `}return l.replace(/\n$/,"")}ss.exports=fu});var M=I((lI,as)=>{"use strict";var ls=Ye(),du=["kind","multi","resolve","construct","instanceOf","predicate","represent","representName...
L10: \r`;function qu(e){if(e===null)return!1;let t=0,n=e.length,r=$n;for(let i=0;i<n;i++){let s=r.indexOf(e.charAt(i));if(!(s>64)){if(s<0)return!1;t+=6}}return t%8===0}function Qu(e){le...
...
L33: `+e.slice(o+1):a+=e.slice(i),a.slice(1)}function md(e){let t="",n=0;for(let r=0;r<e.length;n>=65536?r+=2:r++){n=ht(e,r);let i=D[n];!i&&mt(n)?(t+=e[r],n>=65536&&(t+=e[r+1])):t+=i||l...
L34: `:""}Co.exports.dump=_d});var Ao=I((R
Critical
Remote Asset Decode Execute
Source fetches a remote non-code asset, decodes its contents, and dynamically executes the decoded payload.
index.cjsView on unpkg · L833Trigger-reachable chain: manifest.main -> index.cjs
L33: `+e.slice(o+1):a+=e.slice(i),a.slice(1)}function md(e){let t="",n=0;for(let r=0;r<e.length;n>=65536?r+=2:r++){n=ht(e,r);let i=D[n];!i&&mt(n)?(t+=e[r],n>=65536&&(t+=e[r+1])):t+=i||l...
L34: `:""}Co.exports.dump=_d});var Ao=I((RI,B)=>{"use strict";var _o=qs(),Ad=bo();function ur(e,t){return function(){throw new Error("Function yaml."+e+" is removed in js-yaml 4. Use ya...
L35: `).join(`\r
...
L39: \r
L40: `+n)}function Le(e,t,n,r,i,s){if(e.listenerCount("wsClientError")){let o=new Error(i);Error.captureStackTrace(o,Le),e.emit("wsClientError",o,n,t)}else wt(n,r,i,s)}});var Zl=I(($I,k...
L41: `).replace(/^/gm," ".repeat(s))}let c=[`Usage: ${n.commandUsage(t)}`,""],u=n.commandDescription(t);u.length>0&&(c=c.concat([n.wrap(u,i,0),""]));let
Findings
2 Critical5 High3 Medium5 Low
CriticalRemote Asset Decode Executeindex.cjs
CriticalTrigger Reachable Dangerous Capabilityindex.cjs
HighChild Processindex.cjs
HighShellindex.cjs
HighSame File Env Network Executionindex.cjs
HighCommand Output Exfiltrationindex.cjs
HighTrigger Reachable Command Output Exfiltrationindex.cjs
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowWeak Cryptoindex.cjs
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Low
Affected versions and remediation
This report applies to @browserstack/accessibility-devtools@1.5.3.
See all versions of @browserstack/accessibility-devtools for other recorded verdicts.
- Review the evidence and your use of @browserstack/accessibility-devtools@1.5.3 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: .
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