CVE-2008-4020
CVE-2008-4020 is a medium-severity vulnerability in Microsoft Office with a CVSS 2.0 base score of 4.3. Its EPSS exploit-prediction score of 24% places it in the 98th 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: 24% (98th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Microsoft Office
- Published:
- Last modified:
Description
Cross-site scripting (XSS) vulnerability in Microsoft Office XP SP3 allows remote attackers to inject arbitrary web script or HTML via a document that contains a "Content-Disposition: attachment" header and is accessed through a cdo: URL, which renders the content instead of raising a File Download dialog box, aka "Vulnerability in Content-Disposition Header Vulnerability."
Frequently asked questions
- What is CVE-2008-4020?
- Cross-site scripting (XSS) vulnerability in Microsoft Office XP SP3 allows remote attackers to inject arbitrary web script or HTML via a document that contains a "Content-Disposition: attachment" header and is accessed through a cdo: URL, which renders the content instead of raising a File Download dialog box, aka "Vulnerability in Content-Disposition Header Vulnerability."
- How severe is CVE-2008-4020?
- CVE-2008-4020 has a CVSS 2.0 base score of 4.3, rated medium severity.
- Is CVE-2008-4020 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 24% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2008-4020?
- CVE-2008-4020 affects Microsoft Office. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2008-4020?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2008-4020 published?
- CVE-2008-4020 was published on 2008-10-15 and last updated on 2026-06-16.
References
- http://jvn.jp/en/jp/JVN55410403/index.html
- http://jvndb.jvn.jp/ja/contents/2008/JVNDB-2008-000070.html
- http://marc.info/?l=bugtraq&m=122479227205998&w=2
- http://secunia.com/advisories/32138
- http://www.securityfocus.com/bid/31693
- http://www.securitytracker.com/id?1021045
- http://www.us-cert.gov/cas/techalerts/TA08-288A.html
- http://www.vupen.com/english/advisories/2008/2807
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2008/ms08-056
- https://exchange.xforce.ibmcloud.com/vulnerabilities/45546
- https://exchange.xforce.ibmcloud.com/vulnerabilities/45550
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5969
Affected products (1)
- cpe:2.3:a:microsoft:office:xp:sp3:*:*:*:*:*:*
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