Multiple cross-site scripting (XSS) vulnerabilities in Bugzilla 2.18.x before 2.18.6, 2.20.x before 2.20.3, 2.22.x before 2.22.1, and 2.23.x before 2.23.3 allow remote authenticated users to inject arbitrary web script or HTML via (1) page headers using the H1, H2, and H3 HTML tags in global/header.html.tmpl, (2) description fields of certain items in various edit cgi scripts, and (3) the id parameter in showdependencygraph.cgi.
Conclusion & alert: CVE-2006-5453 is rated Moderate Risk (41.6/100): CVSS Low severity, with medium exploitation likelihood (EPSS 1.87%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 1.08% | 1.87% | +0.79% |
| 2 | 2025-11-16 | 0.83% | 1.08% | +0.25% |
| 3 | 2025-06-11 | — | 0.83% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 3.5 | 2.0 | LOW |
|
6.8 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2006-5453: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. | https://security.alpinelinux.org/vuln/CVE-2006-5453 |
gentoo
|
normal | CVE-2006-5453: 1 GLSA(s) (200611-04), 1 atom(s) (www-apps/bugzilla); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2006-5453 |
ubuntu
|
medium | CVE-2006-5453 medium priority: Ubuntu including 1 source packages (bugzilla), 9 status rows across 9 suites (dapper, edgy, feisty, gutsy, hardy, intrepid, jaunty, karmic, upstream): released 6, ignored 2, needs-triage 1. | https://ubuntu.com/security/CVE-2006-5453 |
: This vulnerability is addressed in the following product releases: Mozilla, Bugzilla, 2.18.6 Mozilla, Bugzilla, 2.20.3 Mozilla, Bugzilla, 2.22.1 Mozilla, Bugzilla, 2.23.3
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| mozilla | bugzilla | 2.18 | cpe:2.3:a:mozilla:bugzilla:2.18:*:*:*:*:*:*:* |
| mozilla | bugzilla | 2.18 | cpe:2.3:a:mozilla:bugzilla:2.18:rc1:*:*:*:*:*:* |
| mozilla | bugzilla | 2.18 | cpe:2.3:a:mozilla:bugzilla:2.18:rc2:*:*:*:*:*:* |
| mozilla | bugzilla | 2.18 | cpe:2.3:a:mozilla:bugzilla:2.18:rc3:*:*:*:*:*:* |
| mozilla | bugzilla | 2.18.1 | cpe:2.3:a:mozilla:bugzilla:2.18.1:*:*:*:*:*:*:* |
| mozilla | bugzilla | 2.18.2 | cpe:2.3:a:mozilla:bugzilla:2.18.2:*:*:*:*:*:*:* |
| mozilla | bugzilla | 2.18.3 | cpe:2.3:a:mozilla:bugzilla:2.18.3:*:*:*:*:*:*:* |
| mozilla | bugzilla | 2.18.4 | cpe:2.3:a:mozilla:bugzilla:2.18.4:*:*:*:*:*:*:* |
| mozilla | bugzilla | 2.18.5 | cpe:2.3:a:mozilla:bugzilla:2.18.5:*:*:*:*:*:*:* |
| mozilla | bugzilla | 2.20 | cpe:2.3:a:mozilla:bugzilla:2.20:*:*:*:*:*:*:* |
| mozilla | bugzilla | 2.20 | cpe:2.3:a:mozilla:bugzilla:2.20:rc1:*:*:*:*:*:* |
| mozilla | bugzilla | 2.20 | cpe:2.3:a:mozilla:bugzilla:2.20:rc2:*:*:*:*:*:* |
| mozilla | bugzilla | 2.20.1 | cpe:2.3:a:mozilla:bugzilla:2.20.1:*:*:*:*:*:*:* |
| mozilla | bugzilla | 2.20.2 | cpe:2.3:a:mozilla:bugzilla:2.20.2:*:*:*:*:*:*:* |
| mozilla | bugzilla | 2.22 | cpe:2.3:a:mozilla:bugzilla:2.22:*:*:*:*:*:*:* |
| mozilla | bugzilla | 2.23 | cpe:2.3:a:mozilla:bugzilla:2.23:*:*:*:*:*:*:* |
| mozilla | bugzilla | 2.23.1 | cpe:2.3:a:mozilla:bugzilla:2.23.1:*:*:*:*:*:*:* |
| mozilla | bugzilla | 2.23.2 | cpe:2.3:a:mozilla:bugzilla:2.23.2:*:*:*:*:*:*:* |