A vulnerability classified as critical has been found in ApPHP ApPHP Calendar (Calendar Software) (the affected version unknown). This affects an unknown part of the file calendar.class.php. The manipulation of the argument event_description with an unknown input leads to a cross-site request forgery vulnerability. CWE is classifying the issue as CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Multiple cross-site request forgery (CSRF) vulnerabilities in calendar.class.php in ApPHP Calendar (ApPHP CAL) allow remote attackers to hijack the authentication of unspecified victims for requests that use the (1) category_name, (2) category_description, (3) event_name, or (4) event_description parameter.

The weakness was disclosed 10/07/2011 as not defined posting (Bugtraq). It is possible to read the advisory at securityfocus.com. This vulnerability is uniquely identified as CVE-2010-4881 since 10/07/2011. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

By approaching the search of inurl:calendar.class.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entry VDB-58886 is pretty similar.

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Type

• Calendar Software

Vendor

• ApPHP

Name

• ApPHP Calendar

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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