How severe is CVE-2015-8508?

CVE-2015-8508 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2015-8508 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-8508?

CVE-2015-8508 primarily affects Mozilla Bugzilla. In total, 147 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-8508?

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

When was CVE-2015-8508 published?

CVE-2015-8508 was published on 2016-01-03 and last updated on 2026-06-17.

CVE-2015-8508

CVE-2015-8508 is a medium-severity vulnerability in Mozilla Bugzilla with a CVSS 3.x base score of 4.7. 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 3.x base score 4.7)
CVSS v2: 2.6
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Mozilla Bugzilla
Published: 2016-01-03
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in showdependencygraph.cgi in Bugzilla 2.x, 3.x, and 4.x before 4.2.16, 4.3.x and 4.4.x before 4.4.11, and 4.5.x and 5.0.x before 5.0.2, when a local dot configuration is used, allows remote attackers to inject arbitrary web script or HTML via a crafted bug summary.

Frequently asked questions

What is CVE-2015-8508?: Cross-site scripting (XSS) vulnerability in showdependencygraph.cgi in Bugzilla 2.x, 3.x, and 4.x before 4.2.16, 4.3.x and 4.4.x before 4.4.11, and 4.5.x and 5.0.x before 5.0.2, when a local dot configuration is used, allows remote attackers to inject arbitrary web script or HTML via a crafted bug summary.
How severe is CVE-2015-8508?: CVE-2015-8508 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2015-8508 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-8508?: CVE-2015-8508 primarily affects Mozilla Bugzilla. In total, 147 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-8508?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-8508 published?: CVE-2015-8508 was published on 2016-01-03 and last updated on 2026-06-17.

References

Affected products (147)

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:2.10:*:*:*:*:*:*:*
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:2.16.1:*:*:*:*:*:*:*
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:2.18:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.18.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.18.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.18.3:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.18.4:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.18.5:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.18.6:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.20:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.20.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.20.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.20.3:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.20.4:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.20.5:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.20.6:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:2.20.7:*:*:*:*:*:*:*

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