MEDIUMPOC
CVE-2003-0523
NVD-CWE-OtherPublished: August 18, 2003· Updated: Jun 16, 2026
6.8
CVSS v3.1
Official Description
Cross-site scripting (XSS) vulnerability in msg.asp for certain versions of ProductCart allow remote attackers to execute arbitrary web script via the message parameter.
Technical Analysis
CVE-2003-0523 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-2003-0523. 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
ConfidentialityP
IntegrityP
AvailabilityP
AV:N/AC:M/Au:N/C:P/I:P/A:P
Affected Vendors & Products
early_impact1 product(s)
productcart
Source: NVD CPE · 16 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.
All References (2)
Quick Facts
CVE IDCVE-2003-0523
CVSS Score6.8 / 10
SeverityMEDIUM
WeaknessNVD-CWE-Other
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedAug 18, 2003
Related CVEs (NVD-CWE-Other)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2003-0523 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.COM. CVE data is provided under the NVD usage policy.