CVE-2015-8508

Cross-site scripting (XSS) vulnerability in showdependencygraph.cgi in Bugzilla 2.x, 3.x, and 4.x...

4.7 Medium

CVE-2015-8508 is a medium vulnerability (CVSS 4.7) in Mozilla Bugzilla, published January 3, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.48%, the 74th percentile. No source names a fixed version.

Severity: 4.7 MediumCVSS 3.0, NVD
Exploit chance: 1.48%EPSS, 74th percentile
Exploitation: None knownNot on CISA’s or ENISA’s lists
Fixed in: No fix listedNo source names one

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.

Attack profile

How easy it is to exploit

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

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

1.48%Up 0.2 points since Feb 4, 2022

Affected products

mozilla bugzilla

Affected packages

Affected packages
Package	Affected	Fixed
`bugzilla` Mageia:5 From an advisory covering 3 CVEs	before 4.4.11-1.mga5	4.4.11-1.mga5

What each source reports

NVD Score used4.7

Record: CVE-2015-8508
CVSS 3.0: 4.7 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0: 2.6 LowAV:N/AC:H/Au:N/C:N/I:P/A:N
Weakness: CWE-79
Updated: 2026-11-02

CVE ListNo score

Record: CVE-2015-8508
Updated: 2026-11-02

EUVDEUVD-2015-8389No score

Record: EUVD-2015-8389
Updated: 2026-11-03

GitHub AdvisoriesGHSA-g3c3-92vq-wv284.7

Cross-site scripting (XSS) vulnerability in showdependencygraph.cgi in Bugzilla 2.x, 3.x, and 4.x...

Record: GHSA-g3c3-92vq-wv28
CVSS 3.0: 4.7 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

OSVMGASA-2016-0006No score

Updated bugzilla packages fix security vulnerability

Login names (usually an email address) longer than 127 characters are silently truncated in MySQL which could cause the domain name of the email address to be corrupted. An attacker could use this vulnerability to create an account with an email address different from the one originally requested. The login name could then be automatically added to groups based on the group's regular expression setting (CVE-2015-4499).

During the generation of a dependency graph, the code for the HTML image map is generated locally if a local dot installation is used. With escaped HTML characters in a bug summary, it is possible to inject unfiltered HTML code in the map file which the CreateImagemap function generates. This could be used for a cross-site scripting attack (CVE-2015-8508).

If an external HTML page contains a "script" tag with its src attribute pointing to a buglist in CSV format, some web browsers incorrectly try to parse the CSV file as valid JavaScript code. As the buglist is generated based on the privileges of the user logged into Bugzilla, the external page could collect confidential data contained in the CSV file (CVE-2015-8509).

The bugzilla package has been updated to version 4.4.11, fixing these issues and a few other bugs.