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CVE-2006-2783

14
FAUCET Score

CVE-2006-2783 describes a cross-site scripting (XSS) vulnerability affecting Mozilla Firefox and Thunderbird versions prior to 1.5.0.4. The flaw arises because these browsers incorrectly strip the Unicode Byte-order-Mark (BOM) from UTF-8 pages, enabling remote attackers to inject malicious script within dangerous HTML tags. This vulnerability has a CVSS score of 4.3, indicating a medium severity with network access required and medium attack complexity, potentially leading to information disclosure. 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
<= 1.5.0.3CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
<= 1.5.0.3CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.67%
Probability of exploitation in next 30 days
EPSS Percentile
74.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0167 is in the 51st percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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 (9)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: seamonkey-0:1.0.2-0.1.0.EL3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: devhelp-0:0.10-0.2.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: seamonkey-0:1.0.3-0.el4.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: firefox-0:1.5.0.5-0.el4.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: thunderbird-0:1.5.0.5-0.el4.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux AS (Advanced Server) version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux ES version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux WS version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux Advanced Workstation 2.1
View patch

Vendor Advisories (1)

redhatCVE-2006-2783Moderate

security flaw

Jun 1, 2006

References

lists.apple.com / archives/security-announce/2008//Jul/msg00001.html
lists.apple.com / archives/security-announce/2009/jun/msg00002.html
rhn.redhat.com / errata/RHSA-2006-0609.html
Vendor Advisory
secunia.com / advisories/20376
Vendor Advisory
secunia.com / advisories/20382
Vendor Advisory
secunia.com / advisories/20561
Vendor Advisory
secunia.com / advisories/20709
Vendor Advisory
secunia.com / advisories/21134
Vendor Advisory
secunia.com / advisories/21176
Vendor Advisory
secunia.com / advisories/21178
Vendor Advisory
secunia.com / advisories/21183
Vendor Advisory
secunia.com / advisories/21188
Vendor Advisory
secunia.com / advisories/21210
Vendor Advisory
secunia.com / advisories/21269
Vendor Advisory
secunia.com / advisories/21270
Vendor Advisory
secunia.com / advisories/21324
Vendor Advisory
secunia.com / advisories/21336
Vendor Advisory
secunia.com / advisories/21532
Vendor Advisory
secunia.com / advisories/21607
Vendor Advisory
secunia.com / advisories/21631
Vendor Advisory
secunia.com / advisories/22065
Vendor Advisory
secunia.com / advisories/22066
Vendor Advisory
secunia.com / advisories/31074
Vendor Advisory
secunia.com / advisories/35379
securitytracker.com / id
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/26852
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10772
support.apple.com / kb/HT3613
usn.ubuntu.com / 296-1
usn.ubuntu.com / 296-2
usn.ubuntu.com / 297-1
usn.ubuntu.com / 297-3
usn.ubuntu.com / 323-1
debian.org / security/2006/dsa-1118
debian.org / security/2006/dsa-1120
debian.org / security/2006/dsa-1134
gentoo.org / security/en/glsa/glsa-200606-12.xml
gentoo.org / security/en/glsa/glsa-200606-21.xml
mandriva.com / security/advisories
mandriva.com / security/advisories
mandriva.com / security/advisories
mozilla.org / security/announce/2006/mfsa2006-42.html
novell.com / linux/security/advisories/2006_35_mozilla.html
redhat.com / support/errata/RHSA-2006-0578.html
Vendor Advisory
redhat.com / support/errata/RHSA-2006-0594.html
Vendor Advisory
redhat.com / support/errata/RHSA-2006-0610.html
Vendor Advisory
redhat.com / support/errata/RHSA-2006-0611.html
Vendor Advisory
securityfocus.com / archive/1/435795/100/0/threaded
securityfocus.com / archive/1/446657/100/200/threaded
securityfocus.com / archive/1/446658/100/200/threaded
securityfocus.com / bid/18228
vupen.com / english/advisories/2006/2106
vupen.com / english/advisories/2006/3748
vupen.com / english/advisories/2006/3749
vupen.com / english/advisories/2008/0083
vupen.com / english/advisories/2008/2094/references
vupen.com / english/advisories/2009/1522
Vendor Advisory