How severe is CVE-2015-8509?

CVE-2015-8509 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2015-8509 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-8509?

CVE-2015-8509 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-2015-8509?

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

When was CVE-2015-8509 published?

CVE-2015-8509 was published on 2016-01-03 and last updated on 2026-06-17.

CVE-2015-8509

CVE-2015-8509 is a low-severity vulnerability in Mozilla Bugzilla with a CVSS 3.x base score of 3.5. 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-200.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
CVSS v2: 4.3
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Mozilla Bugzilla
Published: 2016-01-03
Last modified: 2026-06-17

Description

Template.pm 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 does not properly construct CSV files, which allows remote attackers to obtain sensitive information by leveraging a web browser that interprets CSV data as JavaScript code.

Frequently asked questions

What is CVE-2015-8509?: Template.pm 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 does not properly construct CSV files, which allows remote attackers to obtain sensitive information by leveraging a web browser that interprets CSV data as JavaScript code.
How severe is CVE-2015-8509?: CVE-2015-8509 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2015-8509 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-8509?: CVE-2015-8509 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-2015-8509?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-8509 published?: CVE-2015-8509 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:*:*:*:*:*:*:*

More vulnerabilities in Mozilla Bugzilla

CVE-2004-0769 — Critical (CVSS 10.0): Buffer overflow in LHA allows remote attackers to execute arbitrary code via long pathnames in LHarc format 2 headers…
CVE-2003-1043 — Critical (CVSS 10.0): SQL injection vulnerability in Bugzilla 2.16.3 and earlier, and 2.17.1 through 2.17.4, allows remote authenticated…
CVE-2003-1042 — Critical (CVSS 10.0): SQL injection vulnerability in collectstats.pl for Bugzilla 2.16.3 and earlier allows remote authenticated users with…
CVE-2002-0007 — Critical (CVSS 10.0): CGI.pl in Bugzilla before 2.14.1, when using LDAP, allows remote attackers to obtain an anonymous bind to the LDAP…
CVE-2018-5123 — High (CVSS 8.8): A third party website can access information available to a user with access to a restricted bug entry using the image…
CVE-2015-4499 — High (CVSS 7.5): Util.pm in Bugzilla 2.x, 3.x, and 4.x before 4.2.15, 4.3.x and 4.4.x before 4.4.10, and 5.x before 5.0.1 mishandles…

All CVEs affecting Mozilla Bugzilla →

Other CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities

CVE-2026-27604 — Critical (CVSS 10.0): FOSSBilling is a free, open-source billing and client management system. Starting in version 0.5.4 and prior to version…
CVE-2026-40965 — Critical (CVSS 10.0): Cloud Foundry UAA versions v76.12.0 through v78.12.0 are vulnerable to a private key exposure. The server contains a…
CVE-2026-42826 — Critical (CVSS 10.0): Exposure of sensitive information to an unauthorized actor in Azure DevOps allows an unauthorized attacker to disclose…
CVE-2025-29270 — Critical (CVSS 10.0): Incorrect access control in the realtime.cgi endpoint of Deep Sea Electronics devices DSE855 v1.1.0 to v1.1.26 allows…
CVE-2025-61481 — Critical (CVSS 10.0): An issue in MikroTik RouterOS v.7.14.2 and SwOS v.2.18 exposes the WebFig management interface over cleartext HTTP by…
CVE-2025-53624 — Critical (CVSS 10.0): The Docusaurus gists plugin adds a page to your Docusaurus instance, displaying all public gists of a GitHub user.…

Browse all CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities →