CVE-2007-3930

CVE-2007-3930 is a medium-severity vulnerability in Microsoft Internet Explorer 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.

Key facts

Description

Interpretation conflict between Microsoft Internet Explorer and DocuWiki before 2007-06-26b allows remote attackers to inject arbitrary JavaScript and conduct cross-site scripting (XSS) attacks when spellchecking UTF-8 encoded messages via the spell_utf8test function in lib/exe/spellcheck.php, which triggers HTML document identification and script execution by Internet Explorer even though the Content-Type header is text/plain.

Frequently asked questions

What is CVE-2007-3930?
Interpretation conflict between Microsoft Internet Explorer and DocuWiki before 2007-06-26b allows remote attackers to inject arbitrary JavaScript and conduct cross-site scripting (XSS) attacks when spellchecking UTF-8 encoded messages via the spell_utf8test function in lib/exe/spellcheck.php, which triggers HTML document identification and script execution by Internet Explorer even though the Content-Type header is text/plain.
How severe is CVE-2007-3930?
CVE-2007-3930 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2007-3930 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-2007-3930?
CVE-2007-3930 primarily affects Microsoft Internet Explorer. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-3930?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-3930 published?
CVE-2007-3930 was published on 2007-07-21 and last updated on 2026-06-16.

References

Affected products (2)

More vulnerabilities in Microsoft Internet Explorer

All CVEs affecting Microsoft Internet Explorer →