HOMEVULNERABILITIESCVE-2005-3020
MEDIUMPOC

CVE-2005-3020

NVD-CWE-OtherPublished: September 21, 2005· Updated: Jun 16, 2026

4.3
CVSS v3.1

Official Description

Multiple cross-site scripting (XSS) vulnerabilities in vBulletin before 3.0.9 allow remote attackers to inject arbitrary web script or HTML via the (1) group parameter to css.php, (2) redirect parameter to index.php, (3) email parameter to user.php, (4) goto parameter to language.php, (5) orderby parameter to modlog.php, and the (6) hex, (7) rgb, or (8) expandset parameter to template.php.

NVD Source

Technical Analysis

CVE-2005-3020 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-2005-3020. 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

jelsoft1 product(s)
vbulletin
Source: NVD CPE · 35 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (10)

Quick Facts

CVE IDCVE-2005-3020
CVSS Score4.3 / 10
SeverityMEDIUM
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedSep 21, 2005

Related CVEs (NVD-CWE-Other)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2005-3020 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.