HOMEVULNERABILITIESCVE-2003-1149
MEDIUMPOC

CVE-2003-1149

NVD-CWE-OtherPublished: October 27, 2003· Updated: Jun 16, 2026

4.3
CVSS v3.1

Official Description

Cross-site scripting (XSS) vulnerability in Symantec Norton Internet Security 2003 6.0.4.34 allows remote attackers to inject arbitrary web script or HTML via a URL to a blocked site, which is displayed on the blocked sites error page.

NVD Source

Technical Analysis

CVE-2003-1149 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2003-1149. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityM
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityNone
IntegrityP
AvailabilityNone
AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected Vendors & Products

symantec1 product(s)
norton internet security
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttp://www.osvdb.org/2714
PATCHhttp://www.securityfocus.com/bid/8904
PATCHhttp://www.osvdb.org/2714
PATCHhttp://www.securityfocus.com/bid/8904
ADVISORYhttp://secunia.com/advisories/10067
ADVISORYhttp://securityresponse.symantec.com/avcenter/security/Content/2003.10.27.html
ADVISORYhttp://www.securityfocus.com/archive/1/342548
ADVISORYhttp://secunia.com/advisories/10067
ADVISORYhttp://securityresponse.symantec.com/avcenter/security/Content/2003.10.27.html
ADVISORYhttp://www.securityfocus.com/archive/1/342548

All References (12)

→
http://secunia.com/advisories/10067Vendor Advisory
→
http://securityresponse.symantec.com/avcenter/security/Content/2003.10.27.htmlVendor Advisory
→
http://www.osvdb.org/2714Exploit · Patch · Vendor Advisory
→
http://www.securityfocus.com/archive/1/342548Vendor Advisory
→
http://www.securityfocus.com/bid/8904Exploit · Patch · Vendor Advisory
→
https://exchange.xforce.ibmcloud.com/vulnerabilities/13528
→
http://secunia.com/advisories/10067Vendor Advisory
→
http://securityresponse.symantec.com/avcenter/security/Content/2003.10.27.htmlVendor Advisory
→
http://www.osvdb.org/2714Exploit · Patch · Vendor Advisory
→
http://www.securityfocus.com/archive/1/342548Vendor Advisory
→
http://www.securityfocus.com/bid/8904Exploit · Patch · Vendor Advisory
→
https://exchange.xforce.ibmcloud.com/vulnerabilities/13528

Quick Facts

CVE IDCVE-2003-1149
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessNVD-CWE-Other
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedOct 27, 2003

Related CVEs (NVD-CWE-Other)

CVE-2005-1449
10.0
CVE-2005-1452
10.0
CVE-2004-1299
10.0
CVE-2004-1303
10.0
CVE-2001-1080
10.0
CVE-2003-0509
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2003-1149 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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