How severe is CVE-2007-0478?

CVE-2007-0478 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2007-0478 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-0478?

CVE-2007-0478 primarily affects Apple Safari. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-0478?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2007-0478 published?

CVE-2007-0478 was published on 2007-01-25 and last updated on 2026-06-16.

CVE-2007-0478

CVE-2007-0478 is a medium-severity vulnerability in Apple Safari with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Apple Safari
Published: 2007-01-25
Last modified: 2026-06-16

Description

WebCore on Apple Mac OS X 10.3.9 and 10.4.10, as used in Safari, does not properly parse HTML comments in TITLE elements, which allows remote attackers to conduct cross-site scripting (XSS) attacks and bypass some XSS protection schemes by embedding certain HTML tags within an HTML comment.

Frequently asked questions

What is CVE-2007-0478?: WebCore on Apple Mac OS X 10.3.9 and 10.4.10, as used in Safari, does not properly parse HTML comments in TITLE elements, which allows remote attackers to conduct cross-site scripting (XSS) attacks and bypass some XSS protection schemes by embedding certain HTML tags within an HTML comment.
How severe is CVE-2007-0478?: CVE-2007-0478 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2007-0478 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-0478?: CVE-2007-0478 primarily affects Apple Safari. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-0478?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-0478 published?: CVE-2007-0478 was published on 2007-01-25 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
cpe:2.3:a:apple:webcore:*:*:*:*:*:*:*:*

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