CVE-2012-0007
CVE-2012-0007 is a medium-severity vulnerability in Microsoft Anti-cross Site Scripting Library with a CVSS 2.0 base score of 4.3. Its EPSS exploit-prediction score of 19% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 2.0 base score 4.3)
- EPSS exploit prediction: 19% (97th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Microsoft Anti-cross Site Scripting Library
- Published:
- Last modified:
Description
The Microsoft Anti-Cross Site Scripting (AntiXSS) Library 3.x and 4.0 does not properly evaluate characters after the detection of a Cascading Style Sheets (CSS) escaped character, which allows remote attackers to conduct cross-site scripting (XSS) attacks via HTML input, aka "AntiXSS Library Bypass Vulnerability."
Frequently asked questions
- What is CVE-2012-0007?
- The Microsoft Anti-Cross Site Scripting (AntiXSS) Library 3.x and 4.0 does not properly evaluate characters after the detection of a Cascading Style Sheets (CSS) escaped character, which allows remote attackers to conduct cross-site scripting (XSS) attacks via HTML input, aka "AntiXSS Library Bypass Vulnerability."
- How severe is CVE-2012-0007?
- CVE-2012-0007 has a CVSS 2.0 base score of 4.3, rated medium severity.
- Is CVE-2012-0007 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 19% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2012-0007?
- CVE-2012-0007 primarily affects Microsoft Anti-cross Site Scripting Library. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2012-0007?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2012-0007 published?
- CVE-2012-0007 was published on 2012-01-10 and last updated on 2026-06-16.
References
- http://secunia.com/advisories/47483
- http://secunia.com/advisories/47516
- http://www.securityfocus.com/bid/51291
- http://www.securitytracker.com/id?1026499
- http://www.us-cert.gov/cas/techalerts/TA12-010A.html
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-007
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14314
Affected products (2)
- cpe:2.3:a:microsoft:anti-cross_site_scripting_library:3.1:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:anti-cross_site_scripting_library:4.0:*:*:*:*:*:*:*
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