CVE-2016-2803

Cross-site scripting (XSS) vulnerability in the dependency graphs in Bugzilla 2.16rc1 through 4.4...

6.1 MediumFix available

CVE-2016-2803 is a medium vulnerability (CVSS 6.1) in Mozilla Bugzilla, published May 21, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.48%, the 73rd percentile. Fixed in bugzilla 4.4.12-1.mga5.

Cross-site scripting (XSS) vulnerability in the dependency graphs in Bugzilla 2.16rc1 through 4.4.11, and 4.5.1 through 5.0.2 allows remote attackers to inject arbitrary web script or HTML.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

1.48%Up 0.3 points since Feb 4, 2022

What each source reports

NVD Score used 6.1

Cross-site scripting (XSS) vulnerability in the dependency graphs in Bugzilla 2.16rc1 through 4.4.11, and 4.5.1 through 5.0.2 allows remote attackers to inject arbitrary web script or HTML.

Record: CVE-2016-2803
CVSS 3.0: 6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness: CWE-79
Updated: 2026-11-02

CVE List No score

Cross-site scripting (XSS) vulnerability in the dependency graphs in Bugzilla 2.16rc1 through 4.4.11, and 4.5.1 through 5.0.2 allows remote attackers to inject arbitrary web script or HTML.

Record: CVE-2016-2803
Updated: 2026-11-02

EUVDEUVD-2016-3876 No score

Cross-site scripting (XSS) vulnerability in the dependency graphs in Bugzilla 2.16rc1 through 4.4.11, and 4.5.1 through 5.0.2 allows remote attackers to inject arbitrary web script or HTML.

Record: EUVD-2016-3876
Updated: 2026-11-03

GitHub AdvisoriesGHSA-vwmr-hgcv-r475 6.1

Cross-site scripting (XSS) vulnerability in the dependency graphs in Bugzilla 2.16rc1 through 4.4...

Cross-site scripting (XSS) vulnerability in the dependency graphs in Bugzilla 2.16rc1 through 4.4.11, and 4.5.1 through 5.0.2 allows remote attackers to inject arbitrary web script or HTML.

Record: GHSA-vwmr-hgcv-r475
CVSS 3.0: 6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

OSVMGASA-2016-0201 No score

Updated bugzilla packages fix CVE-2016-2803

Updated bugzilla packages fix security vulnerability:

In Bugzilla before 4.4.12, due to an incorrect parsing of the image map generated by the dot script, a specially crafted bug summary could trigger XSS in dependency graphs (CVE-2016-2803).

Record: MGASA-2016-0201
Updated: 2026-11-02

OSVopenSUSE-SU-2024:10664-1 No score

bugzilla-5.0.6-4.2 on GA media

These are all security issues fixed in the bugzilla-5.0.6-4.2 package on the GA media of openSUSE Tumbleweed.