Vulnerability Monitor

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CVE-2006-5503

Cross-site scripting (XSS) vulnerability in index.php in Simple Machines Forum (SMF) 1.1 RC2 allows remote attackers to inject arbitrary web script or HTML via the action parameter.

Security Impact Summary

CVE-2006-5503 is a security vulnerability that . Impacting 1 product from simple_machines organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2006, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.

Published

2006-10-25T22:07:00.000

Last Modified

2026-04-23T00:35:47.467

Status

Modified

Source

[email protected]

Severity

CVSSv2: 4.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:P/A:N

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	simple_machines	simple_machines_forum	1.1_rc2	Yes

References

http://securityreason.com/securityalert/1772 ([email protected])
http://www.securityfocus.com/archive/1/449241/100/0/threaded ([email protected])
http://www.securityfocus.com/bid/20629 Exploit ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/29690 ([email protected])
http://securityreason.com/securityalert/1772 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/archive/1/449241/100/0/threaded (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/20629 Exploit (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/29690 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For simple_machines's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.