CVE-2009-3858 in GejoSoft
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in GejoSoft allows remote attackers to inject arbitrary web script or HTML via the PATH_INFO to the default URI in photos/tags.
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Analysis
by VulDB Data Team • 05/25/2025
The CVE-2009-3858 vulnerability represents a critical cross-site scripting flaw in GejoSoft, a web-based photo management application that was widely used for organizing and sharing digital images. This vulnerability specifically targets the application's handling of user input through the PATH_INFO parameter when processing requests to the default URI in the photos/tags functionality. The flaw enables remote attackers to execute malicious scripts within the context of other users' browsers, potentially leading to unauthorized actions or data theft. The vulnerability stems from inadequate input validation and output encoding mechanisms within the application's request processing pipeline, where user-supplied PATH_INFO data is not properly sanitized before being rendered in web responses.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious PATH_INFO parameter containing embedded script code that gets executed when other users navigate to the affected URI. The vulnerability classifies under CWE-79 as a failure to sanitize user input before incorporating it into web pages, making it a classic XSS attack vector. Attackers can leverage this flaw to steal session cookies, redirect users to malicious sites, deface web pages, or perform actions on behalf of authenticated users. The impact is particularly severe in environments where GejoSoft is used for collaborative photo sharing, as the vulnerability can be exploited through seemingly legitimate user interactions with shared photo galleries or tagging features.
The operational consequences of this vulnerability extend beyond simple script injection, as it can facilitate more sophisticated attacks within the context of web application security. The vulnerability affects the integrity and confidentiality of user data within the GejoSoft application, potentially allowing attackers to access private photo collections or manipulate shared content. From an ATT&CK framework perspective, this vulnerability maps to T1566 (Phishing) and T1059 (Command and Scripting Interpreter) as attackers can use the XSS payload to redirect users or execute malicious commands. Organizations using GejoSoft were particularly vulnerable because the flaw existed in the core request handling mechanism, making it difficult to patch without disrupting legitimate user functionality.
Mitigation strategies for CVE-2009-3858 require immediate implementation of input validation and output encoding measures throughout the application's codebase. The primary fix involves sanitizing all PATH_INFO parameters and other user-supplied input before rendering them in web responses, implementing proper HTML entity encoding, and employing Content Security Policy headers to prevent script execution. Security teams should also consider implementing input length limits and regular security audits of web application code to identify similar vulnerabilities. Additionally, network-level protections such as web application firewalls can provide additional defense-in-depth measures. Organizations should ensure that all users are updated to patched versions of GejoSoft and that proper security training is provided to prevent social engineering attacks that might exploit this vulnerability. The remediation process should include thorough testing to ensure that the fix does not break legitimate application functionality while effectively blocking XSS payload execution.