How severe is CVE-2007-4539?

CVE-2007-4539 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2007-4539 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-4539?

CVE-2007-4539 primarily affects Mozilla Bugzilla. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-4539?

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

When was CVE-2007-4539 published?

CVE-2007-4539 was published on 2007-08-27 and last updated on 2026-06-16.

CVE-2007-4539

CVE-2007-4539 is a medium-severity vulnerability in Mozilla Bugzilla with a CVSS 2.0 base score of 5.0. 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-264.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Mozilla Bugzilla
Published: 2007-08-27
Last modified: 2026-06-16

Description

The WebService (XML-RPC) interface in Bugzilla 2.23.3 through 3.0.0 does not enforce permissions for the time-tracking fields of bugs, which allows remote attackers to obtain sensitive information via certain XML-RPC requests, as demonstrated by the (1) Deadline and (2) Estimated Time fields.

Frequently asked questions

What is CVE-2007-4539?: The WebService (XML-RPC) interface in Bugzilla 2.23.3 through 3.0.0 does not enforce permissions for the time-tracking fields of bugs, which allows remote attackers to obtain sensitive information via certain XML-RPC requests, as demonstrated by the (1) Deadline and (2) Estimated Time fields.
How severe is CVE-2007-4539?: CVE-2007-4539 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2007-4539 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-4539?: CVE-2007-4539 primarily affects Mozilla Bugzilla. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-4539?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-4539 published?: CVE-2007-4539 was published on 2007-08-27 and last updated on 2026-06-16.

References

Affected products (7)

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:2.23.3:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.23.4:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:3.0.0:*:*:*:*:*:*:*

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