CVE-2006-4758

Exp

phpBB 2.0.21 does not properly handle pathnames ending in %00, which allows remote authenticated administrative users to upload arbitrary files, as demonstrated by a query to admin/admin_board.php with an avatar_path parameter ending in .php%00.

Published: 2006-09-13 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-4758 is rated High Exploit Risk (64.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.84%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2006-4758

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2006-4758

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-10-07 1.86% 2.84% +0.97%
2 2025-05-02 1.79% 1.86% +0.07%
3 2025-03-17 — 1.79% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-4758

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.6 2.0 MEDIUM
AV:N/AC:H/Au:S/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:H)
Exploitation requires uncommon or highly specific conditions.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.9 6.4 [email protected]

Weakness enumeration for CVE-2006-4758

OS Trackers for CVE-2006-4758

vendor priority summary link
ubuntu low CVE-2006-4758 low priority: Ubuntu including 1 source packages (phpbb2), 9 status rows across 9 suites (dapper, edgy, feisty, gutsy, hardy, intrepid, jaunty, karmic, upstream): released 4, DNE 2, ignored 2, needs-triage 1. https://ubuntu.com/security/CVE-2006-4758

NVD evaluator notes for CVE-2006-4758

Solution: Successful exploitation requires that the attacker has Administrative rights.

Affected software / configurations for CVE-2006-4758

Vendor Product Version Raw CPE
phpbb_group phpbb 2.0.21 cpe:2.3:a:phpbb_group:phpbb:2.0.21:*:*:*:*:*:*:*

References for CVE-2006-4758

cvelogic Threat Intelligence