Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2008-5503

13
FAUCET Score

CVE-2008-5503 describes a vulnerability in the loadBindingDocument function of Mozilla Firefox 2.x, Thunderbird 2.x, and SeaMonkey 1.x. This flaw allows remote attackers to bypass the same-domain policy using crafted XBL bindings, leading to unauthorized data access from other domains. The vulnerability has a low CVSS score of 2.6, indicating a network-based attack with high access complexity and a potential impact of partial confidentiality loss. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.0.0.18CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:2.0:*:*:*:*:*:*:*
2.0.0.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:2.0.0.1:*:*:*:*:*:*:*
2.0.0.2CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:2.0.0.2:*:*:*:*:*:*:*
2.0.0.3CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:2.0.0.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.6LOW

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.52%
Probability of exploitation in next 30 days
EPSS Percentile
72.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0152 is in the 59th percentile among its peer group of 1,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 2.1Fixed in: seamonkey-0:1.0.9-0.25.el2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: seamonkey-0:1.0.9-0.29.el3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: seamonkey-0:1.0.9-32.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: thunderbird-0:1.5.0.12-18.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: thunderbird-0:2.0.0.19-1.el5_2
View patch

Vendor Advisories (1)

redhatCVE-2008-5503Moderate

Firefox 2 Information stealing via loadBindingDocument

Dec 16, 2008

References

bugzilla.mozilla.org / show_bug.cgi
secunia.com / advisories/33184
secunia.com / advisories/33189
secunia.com / advisories/33204
secunia.com / advisories/33205
secunia.com / advisories/33231
secunia.com / advisories/33232
secunia.com / advisories/33408
secunia.com / advisories/33415
secunia.com / advisories/33421
secunia.com / advisories/33433
secunia.com / advisories/33434
secunia.com / advisories/33523
secunia.com / advisories/33547
secunia.com / advisories/34501
secunia.com / advisories/35080
exchange.xforce.ibmcloud.com / vulnerabilities/47409
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11423
sunsolve.sun.com / search/document.do
sunsolve.sun.com / search/document.do
usn.ubuntu.com / 690-3
debian.org / security/2009/dsa-1696
debian.org / security/2009/dsa-1697
debian.org / security/2009/dsa-1704
debian.org / security/2009/dsa-1707
mandriva.com / security/advisories
mandriva.com / security/advisories
mozilla.org / security/announce/2008/mfsa2008-61.html
redhat.com / support/errata/RHSA-2008-1037.html
redhat.com / support/errata/RHSA-2009-0002.html
securityfocus.com / bid/32882
securitytracker.com / id
ubuntu.com / usn/usn-690-2
ubuntu.com / usn/usn-701-1
ubuntu.com / usn/usn-701-2
vupen.com / english/advisories/2009/0977