CVE-2010-4044

CVE-2010-4044 is a medium-severity vulnerability in Opera Opera Browser 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-20.

Key facts

Description

Opera before 10.63 does not ensure that the portion of a URL shown in the Address Bar contains the beginning of the URL, which allows remote attackers to spoof URLs by changing a window's size.

Frequently asked questions

What is CVE-2010-4044?
Opera before 10.63 does not ensure that the portion of a URL shown in the Address Bar contains the beginning of the URL, which allows remote attackers to spoof URLs by changing a window's size.
How severe is CVE-2010-4044?
CVE-2010-4044 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2010-4044 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-4044?
CVE-2010-4044 primarily affects Opera Opera Browser. In total, 110 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-4044?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-4044 published?
CVE-2010-4044 was published on 2010-10-21 and last updated on 2026-06-16.

References

Affected products (110)

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