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CVE-2008-5022

21
FAUCET Score

CVE-2008-5022 describes a same-origin policy bypass vulnerability affecting Mozilla Firefox, Thunderbird, and SeaMonkey versions prior to their respective patches. This flaw, residing in the nsXMLHttpRequest::NotifyEventListeners method, allowed remote attackers to execute arbitrary script by leveraging multiple listeners to circumvent an inner window check. With a CVSS score of 7.5, this vulnerability is considered highly severe, enabling unauthenticated attackers to achieve partial confidentiality, integrity, and availability impacts over a network with low attack complexity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.0, < 2.0.0.18CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
>= 3.0, < 3.0.4CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
>= 1.0, < 1.1.13CPE matchmatch criteria
cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*
>= 2.0, < 2.0.0.18CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.03%
Probability of exploitation in next 30 days
EPSS Percentile
86.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0303 is in the 75th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (13)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: yelp-0:2.16.0-22.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 2.1Fixed in: seamonkey-0:1.0.9-0.21.el2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: seamonkey-0:1.0.9-0.25.el3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: thunderbird-0:1.5.0.12-17.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: seamonkey-0:1.0.9-28.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: firefox-0:3.0.4-1.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: nss-0:3.12.1.1-3.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: thunderbird-0:2.0.0.18-1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: devhelp-0:0.12-20.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:3.0.4-1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: nss-0:3.12.1.1-3.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xulrunner-0:1.9.0.4-1.el5
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2008-5022Moderate

nsXMLHttpRequest:: NotifyEventListeners() same-origin violation

Nov 12, 2008

References

lists.opensuse.org / opensuse-security-announce/2008-11/msg00004.html
Third Party Advisory
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingVendor Advisory
secunia.com / advisories/32684
Third Party Advisory
secunia.com / advisories/32693
Third Party Advisory
secunia.com / advisories/32694
Third Party Advisory
secunia.com / advisories/32695
Third Party Advisory
secunia.com / advisories/32713
Third Party Advisory
secunia.com / advisories/32714
Third Party Advisory
secunia.com / advisories/32715
Third Party Advisory
secunia.com / advisories/32721
Third Party Advisory
secunia.com / advisories/32778
Third Party Advisory
secunia.com / advisories/32798
Third Party Advisory
secunia.com / advisories/32845
Third Party Advisory
secunia.com / advisories/32853
Third Party Advisory
secunia.com / advisories/33433
Third Party Advisory
secunia.com / advisories/33434
Third Party Advisory
secunia.com / advisories/34501
Third Party Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11186
Third Party Advisory
sunsolve.sun.com / search/document.do
Broken Link
redhat.com / archives/fedora-package-announce/2008-November/msg00366.html
Third Party Advisory
redhat.com / archives/fedora-package-announce/2008-November/msg00385.html
Third Party Advisory
ubuntu.com / usn/usn-667-1
Third Party Advisory
debian.org / security/2008/dsa-1669
Third Party Advisory
debian.org / security/2008/dsa-1671
Third Party Advisory
debian.org / security/2009/dsa-1696
Third Party Advisory
debian.org / security/2009/dsa-1697
Third Party Advisory
mandriva.com / security/advisories
Third Party Advisory
mandriva.com / security/advisories
Third Party Advisory
mandriva.com / security/advisories
Third Party Advisory
mozilla.org / security/announce/2008/mfsa2008-56.html
Vendor Advisory
redhat.com / support/errata/RHSA-2008-0976.html
Third Party Advisory
redhat.com / support/errata/RHSA-2008-0977.html
Third Party Advisory
redhat.com / support/errata/RHSA-2008-0978.html
Third Party Advisory
securityfocus.com / bid/32281
Third Party AdvisoryVDB Entry
securitytracker.com / id
Third Party AdvisoryVDB Entry
us-cert.gov / cas/techalerts/TA08-319A.html
Third Party AdvisoryUS Government Resource
vupen.com / english/advisories/2008/3146
Third Party Advisory
vupen.com / english/advisories/2009/0977
Third Party Advisory