LOW
CVE-2001-1521
NVD-CWE-OtherPublished: December 31, 2001· Updated: Jun 16, 2026
2.6
CVSS v3.1
Official Description
Cross-site scripting (XSS) vulnerability in user.php in PostNuke 0.64 allows remote attackers to inject arbitrary web script or HTML via the uname parameter.
Technical Analysis
CVE-2001-1521 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.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityNone
IntegrityP
AvailabilityNone
AV:N/AC:H/Au:N/C:N/I:P/A:N
Affected Vendors & Products
postnuke_software_foundation1 product(s)
postnuke
Source: NVD CPE · 3 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
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NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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All References (8)
Quick Facts
CVE IDCVE-2001-1521
CVSS Score2.6 / 10
SeverityLOW
WeaknessNVD-CWE-Other
CISA KEVNo
Affected1 vendor(s)
PublishedDec 31, 2001
Related CVEs (NVD-CWE-Other)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2001-1521 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.