CVE-2005-4621: n/a vulnerability

CVE-2005-4621: Cross-site scripting (XSS) vulnerability in the editavatar page in vBulletin 3.5.1 allows remote attackers...

Cross-site scripting (XSS) vulnerability in the editavatar page in vBulletin 3.5.1 allows remote attackers to inject arbitrary web script or HTML via a URL in the remote avatar url field, in which the URL generates a parsing error, and possibly requiring a trailing extension such as .jpg.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 23:53 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old cross-site scripting issue in vBulletin 3.5.1. A remote attacker could submit a specially formed remote avatar URL that causes an error and injects script or HTML. Business risk depends on whether any public-facing forum still runs this legacy version and allows remote avatar URLs. Exposure is most likely on legacy vBulletin 3.5.1 deployments where users can set avatars from remote URLs. The provided metadata lacks CPEs and complete affected-version data, so inventory validation is necessary. Treat this as a legacy exposure cleanup item unless a vulnerable forum is internet-facing or business-critical. If vBulletin 3.5.1 is still deployed, prioritize upgrade or containment because unsupported web applications create broader compromise risk. Mitigation focus: Identify and prioritize any remaining vBulletin 3.5.1 systems.; Check vBulletin vendor guidance for the fixed release or supported upgrade path.; Disable remote avatar URLs if vendor-supported and operationally acceptable..

Prepared: Jun 29, 2026, 15:35 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jan 6, 2006, 11:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

0ADP providers

1Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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