CVE-2007-6589

The jar protocol handler in Mozilla Firefox before 2.0.0.10 and SeaMonkey before 1.1.7 does not update the origin domain when retrieving the inner URL parameter yields an HTTP redirect, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a jar: URI, a different vulnerability than CVE-2007-5947.

Published: 2007-12-28 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2007-6589 is rated Moderate Risk (41.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.58%). 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.

Exploit prediction scoring system (EPSS) score for CVE-2007-6589

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 2026-03-14 0.55% 0.58% +0.04%
2 2025-03-30 0.43% 0.55% +0.12%
3 2025-03-29 0.43%

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-6589

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
8.6 2.9 [email protected]

Weakness enumeration for CVE-2007-6589

OS Trackers for CVE-2007-6589

vendor priority summary link
ubuntu low CVE-2007-6589 low priority: Ubuntu including 4 source packages (firefox, iceape, seamonkey, xulrunner), 28 status rows across 7 suites (dapper, edgy, feisty, gutsy, hardy, intrepid, upstream): DNE 11, released 7, not-affected 5, ignored 3, needs-triage 2. https://ubuntu.com/security/CVE-2007-6589

Affected software / configurations for CVE-2007-6589

Vendor Product Version Raw CPE
mozilla firefox <= 2.0.0.9 cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
mozilla seamonkey <= 1.1.6 cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*

References for CVE-2007-6589

cvelogic Threat Intelligence