CVE-2009-4623

Exp

Multiple PHP remote file inclusion vulnerabilities in Advanced Comment System 1.0 allow remote attackers to execute arbitrary PHP code via a URL in the ACS_path parameter to (1) index.php and (2) admin.php in advanced_comment_system/. NOTE: this might only be a vulnerability when the administrator has not followed installation instructions in install.php. NOTE: this might be the same as CVE-2020-35598.

Published: 2010-01-18 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4623 is rated High Exploit Risk (76.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.62%). 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-2009-4623

EDB-ID Source Kind Published Link
9623 exploit_db edb 2009-09-10 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-4623

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 2026-05-10 3.13% 3.62% +0.49%
2 2026-01-19 3.05% 3.13% +0.08%
3 2025-12-18 — 3.05% —

Full EPSS history (23 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4623

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-2009-4623

Affected software / configurations for CVE-2009-4623

Vendor Product Version Raw CPE
plohni advanced_comment_system 1.0 cpe:2.3:a:plohni:advanced_comment_system:1.0:*:*:*:*:*:*:*

References for CVE-2009-4623

URL Tags
http://secunia.com/advisories/36643 Vendor Advisory
http://www.exploit-db.com/exploits/9623 Exploit Third Party Advisory VDB Entry
cvelogic Threat Intelligence