CVE-2004-2261

Vulnerability

A cross-site scripting (XSS) vulnerability exists in e107 versions prior to the fix referenced in Secunia advisory [1]. The flaw affects the login name/author field within both the news submission form and the article submission form. This field does not sanitize user-supplied input, allowing the injection of arbitrary script or HTML code. The vulnerability is triggered when a user submits a news item or an article entry.

Exploitation

An attacker can exploit this vulnerability by submitting a specially crafted payload in the login name/author field of the news or article submission form. No special authentication or elevated privileges are required; the attacker simply needs access to the submission forms. When the malicious content is later rendered on a page viewed by other users, the injected script executes in the context of the victim's browser, as described in the Secunia report [1].

Impact

Successful exploitation allows an attacker to execute arbitrary script or HTML in the browsers of users who view the affected submission. This can lead to session hijacking, credential theft, defacement, or redirection to malicious sites. The attack operates at the privilege level of the victim user and can affect any visitor to the site who views the tainted content [1].

Mitigation

Not explicitly disclosed in the available references. The Secunia advisory [1] was published in 2004, and users are advised to upgrade to the latest patched version of e107 or apply the vendor-supplied fix if one was provided. No current workaround is documented in the provided sources.