How severe is CVE-2011-3667?

CVE-2011-3667 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2011-3667 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-3667?

CVE-2011-3667 primarily affects Mozilla Bugzilla. In total, 160 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-3667?

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

When was CVE-2011-3667 published?

CVE-2011-3667 was published on 2012-01-02 and last updated on 2026-06-16.

CVE-2011-3667

CVE-2011-3667 is a medium-severity vulnerability in Mozilla Bugzilla with a CVSS 2.0 base score of 6.8. 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-287.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Mozilla Bugzilla
Published: 2012-01-02
Last modified: 2026-06-16

Description

The User.offer_account_by_email WebService method in Bugzilla 2.x and 3.x before 3.4.13, 3.5.x and 3.6.x before 3.6.7, 3.7.x and 4.0.x before 4.0.3, and 4.1.x through 4.1.3, when createemailregexp is not empty, does not properly handle user_can_create_account settings, which allows remote attackers to create user accounts by leveraging a token contained in an e-mail message.

Frequently asked questions

What is CVE-2011-3667?: The User.offer_account_by_email WebService method in Bugzilla 2.x and 3.x before 3.4.13, 3.5.x and 3.6.x before 3.6.7, 3.7.x and 4.0.x before 4.0.3, and 4.1.x through 4.1.3, when createemailregexp is not empty, does not properly handle user_can_create_account settings, which allows remote attackers to create user accounts by leveraging a token contained in an e-mail message.
How severe is CVE-2011-3667?: CVE-2011-3667 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2011-3667 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-3667?: CVE-2011-3667 primarily affects Mozilla Bugzilla. In total, 160 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-3667?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-3667 published?: CVE-2011-3667 was published on 2012-01-02 and last updated on 2026-06-16.

References

Affected products (160)

cpe:2.3:a:mozilla:bugzilla:2.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.4:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.6:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.8:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.9:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.10:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.12:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.14:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.14.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.14.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.14.3:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.14.4:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.14.5:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.16:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.16:rc1:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.16:rc2:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.16.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.16.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.16.3:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.16.4:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.16.5:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.16.6:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.16.7:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.16.8:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.16.9:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.16.10:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.16.11:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.17:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.17.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.17.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.17.3:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.17.4:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.17.5:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.17.6:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.17.7:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.18:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.18:rc1:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.18:rc2:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.18:rc3:*:*:*:*:*:*

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