CVE-2006-4450: n/a vulnerability

CVE-2006-4450: usercp_avatar.php in PHPBB 2.0.20, when avatar uploading is enabled, allows remote attackers to use the ser...

usercp_avatar.php in PHPBB 2.0.20, when avatar uploading is enabled, allows remote attackers to use the server as a web proxy by submitting a URL to the avatarurl parameter, which is then used in an HTTP GET request.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 19:14 UTC (UTC+00:00)

Security readout for executives and security teams

This issue affects phpBB 2.0.20 when avatar uploading is enabled. An attacker could submit a URL as an avatar source and cause the forum server to make an HTTP GET request, effectively using the server as a web proxy. Exposure is likely limited to legacy phpBB 2.0.20 installations with avatar uploading or remote avatar URL handling enabled. The source bundle does not identify other affected versions or supported product lines. Treat this as a legacy exposure cleanup item. It is not documented here as actively exploited, but exposed old forum software can create reputational, network, and abuse-handling risk if attackers relay traffic through company infrastructure. Mitigation focus: Inventory any remaining phpBB 2.0.20 systems.; Check whether avatar uploading or remote avatar URLs are enabled.; Disable avatar upload or remote URL fetching pending vendor guidance..

Prepared: Jun 29, 2026, 10:45 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: Aug 30, 2006, 01:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

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2Source links

CVSS and timeline data

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Source materials

CVE List V5 sourceCVE List V5
phpbb-avatar-security-bypass(26537)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

CWE details

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