CVE-2005-1820

Exp

zboard.php in Zeroboard version 4.1pl2 to 4.1pl5 allows remote attackers to execute arbitrary PHP code via improper quoting when using the preg_replace function.

Published: 2005-06-01 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2005-1820 is rated High Exploit Risk (73.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.66%). 3 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-2005-1820

EDB-ID Source Kind Published Link
1020 exploit_db edb 2005-05-31 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2005-1820

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 3.06% 2.66% -0.41%
2 2025-03-30 4.12% 3.06% -1.05%
3 2025-03-29 — 4.12% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2005-1820

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P 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:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2005-1820

Affected software / configurations for CVE-2005-1820

Vendor Product Version Raw CPE
zeroboard zeroboard 4.1_pl2 cpe:2.3:a:zeroboard:zeroboard:4.1_pl2:*:*:*:*:*:*:*
zeroboard zeroboard 4.1_pl3 cpe:2.3:a:zeroboard:zeroboard:4.1_pl3:*:*:*:*:*:*:*
zeroboard zeroboard 4.1_pl4 cpe:2.3:a:zeroboard:zeroboard:4.1_pl4:*:*:*:*:*:*:*
zeroboard zeroboard 4.1_pl5 cpe:2.3:a:zeroboard:zeroboard:4.1_pl5:*:*:*:*:*:*:*

References for CVE-2005-1820

cvelogic Threat Intelligence