CVE-2006-1963

Exp

Directory traversal vulnerability in main.php in PCPIN Chat 5.0.4 and earlier allows remote authenticated users to include and execute arbitrary PHP code via a ".." (dot dot) in a language cookie, as demonstrated by uploading then accessing a smiliefile image that actually contains PHP code.

Published: 2006-04-21 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-1963 is rated High Exploit Risk (62.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.57%). 2 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-2006-1963

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

Exploit prediction scoring system (EPSS) score for CVE-2006-1963

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 2026-06-15 1.20% 1.57% +0.37%
2 2025-05-15 0.98% 1.20% +0.22%
3 2025-03-17 — 0.98% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-1963

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 2.0 MEDIUM
AV:N/AC:L/Au:S/C:P/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
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:N)
No availability impact.
 8.0 4.9 [email protected]

Weakness enumeration for CVE-2006-1963

Affected software / configurations for CVE-2006-1963

Vendor Product Version Raw CPE
pcpin pcpin_chat 3.1.5 cpe:2.3:a:pcpin:pcpin_chat:3.1.5:*:*:*:*:*:*:*
pcpin pcpin_chat 3.1.6 cpe:2.3:a:pcpin:pcpin_chat:3.1.6:*:*:*:*:*:*:*
pcpin pcpin_chat 3.1.7r cpe:2.3:a:pcpin:pcpin_chat:3.1.7r:*:*:*:*:*:*:*
pcpin pcpin_chat 3.2.0 cpe:2.3:a:pcpin:pcpin_chat:3.2.0:*:*:*:*:*:*:*
pcpin pcpin_chat 3.2.1 cpe:2.3:a:pcpin:pcpin_chat:3.2.1:*:*:*:*:*:*:*
pcpin pcpin_chat 3.2.3 cpe:2.3:a:pcpin:pcpin_chat:3.2.3:*:*:*:*:*:*:*
pcpin pcpin_chat 4.0 cpe:2.3:a:pcpin:pcpin_chat:4.0:*:*:*:*:*:*:*
pcpin pcpin_chat 5.0.1 cpe:2.3:a:pcpin:pcpin_chat:5.0.1:*:*:*:*:*:*:*
pcpin pcpin_chat 5.0.2 cpe:2.3:a:pcpin:pcpin_chat:5.0.2:*:*:*:*:*:*:*
pcpin pcpin_chat 5.0.3 cpe:2.3:a:pcpin:pcpin_chat:5.0.3:*:*:*:*:*:*:*
pcpin pcpin_chat 5.0.4 cpe:2.3:a:pcpin:pcpin_chat:5.0.4:*:*:*:*:*:*:*

References for CVE-2006-1963

cvelogic Threat Intelligence