Is CVE-2008-5506 being actively exploited?

CVE-2008-5506 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2008-5506?

CVE-2008-5506 has a CVSS 2.0 base score of 6.8 (MEDIUM).

CVE-2008-5506

MEDIUM · CVSS 6.8EPSS 2.1%EU EUVD

Mozilla Firefox 3.x before 3.0.5 and 2.x before 2.0.0.19, Thunderbird 2.x before 2.0.0.19, and SeaMonkey 1.x before 1.1.14 allows remote attackers to bypass the same origin policy by causing the browser to issue an XMLHttpRequest to an attacker-controlled resource that uses a 302 redirect to a resource in a different domain, then reading content from the response, aka "response disclosure."

Key facts

CVSS score: 6.8 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness (CWE): CWE-264
EPSS score: 2.1% (82th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2008-5483)
Published: December 17, 2008
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2008-5483 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
debian / debian linux
debian / debian linux
mozilla / firefox
mozilla / seamonkey
mozilla / thunderbird

References

http://secunia.com/advisories/33184(Third Party Advisory)
http://secunia.com/advisories/33188(Third Party Advisory)
http://secunia.com/advisories/33189(Third Party Advisory)
http://secunia.com/advisories/33203(Third Party Advisory)
http://secunia.com/advisories/33204(Third Party Advisory)
http://secunia.com/advisories/33205(Third Party Advisory)
http://secunia.com/advisories/33216(Third Party Advisory)
http://secunia.com/advisories/33231(Third Party Advisory)
http://secunia.com/advisories/33232(Third Party Advisory)
http://secunia.com/advisories/33408(Third Party Advisory)
http://secunia.com/advisories/33415(Third Party Advisory)
http://secunia.com/advisories/33421(Third Party Advisory)
http://secunia.com/advisories/33433(Third Party Advisory)
http://secunia.com/advisories/33434(Third Party Advisory)
http://secunia.com/advisories/33523(Third Party Advisory)
http://secunia.com/advisories/33547(Third Party Advisory)
http://secunia.com/advisories/34501(Third Party Advisory)
http://secunia.com/advisories/35080(Third Party Advisory)
http://sunsolve.sun.com/search/document.do?assetkey=1-26-256408-1(Broken Link)
http://sunsolve.sun.com/search/document.do?assetkey=1-26-258748-1(Broken Link)
http://www.debian.org/security/2009/dsa-1696(Third Party Advisory)
http://www.debian.org/security/2009/dsa-1697(Third Party Advisory)
http://www.debian.org/security/2009/dsa-1704(Third Party Advisory)
http://www.debian.org/security/2009/dsa-1707(Third Party Advisory)
http://www.mandriva.com/security/advisories?name=MDVSA-2008:244(Third Party Advisory)
http://www.mandriva.com/security/advisories?name=MDVSA-2008:245(Third Party Advisory)
http://www.mandriva.com/security/advisories?name=MDVSA-2009:012(Third Party Advisory)
http://www.mozilla.org/security/announce/2008/mfsa2008-64.html(Vendor Advisory)
http://www.redhat.com/support/errata/RHSA-2008-1036.html(Third Party Advisory)
http://www.redhat.com/support/errata/RHSA-2008-1037.html(Third Party Advisory)
http://www.redhat.com/support/errata/RHSA-2009-0002.html(Third Party Advisory)
http://www.securityfocus.com/bid/32882(Third Party Advisory, VDB Entry)
http://www.securitytracker.com/id?1021427(Third Party Advisory, VDB Entry)
http://www.ubuntu.com/usn/usn-690-2(Third Party Advisory)
http://www.ubuntu.com/usn/usn-701-1(Third Party Advisory)
http://www.ubuntu.com/usn/usn-701-2(Third Party Advisory)
http://www.vupen.com/english/advisories/2009/0977(Third Party Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=458248(Issue Tracking, Vendor Advisory)
https://exchange.xforce.ibmcloud.com/vulnerabilities/47412(Third Party Advisory, VDB Entry)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10512(Third Party Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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