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Cross-site Scripting (XSS) Vulnerabilities in ATutor

Advisory ID:HTB22599
Product:ATutor
Vendor:Inclusive Design Institute
Vulnerable Versions:1.0 and probably prior
Tested Version:1.0
Advisory Publication:September 1, 2010 [without technical details]
Vendor Notification:September 1, 2010
Public Disclosure:September 15, 2010
Latest Update:September 9, 2010
Vulnerability Type:Cross-Site Scripting [CWE-79]
Risk Level:Low
CVSSv2 Base Score:2.6 (AV:N/AC:H/Au:N/C:N/I:P/A:N)
Solution Status:Fixed by Vendor
Discovered and Provided:High-Tech Bridge Security Research Lab
 

Advisory Details:

High-Tech Bridge SA Security Research Lab has discovered multiple vulnerabilities in ATutor which could be exploited to perform cross-site scripting attacks.

1) Cross-site scripting (XSS) vulnerability in ATutor
The vulnerability exists due to input sanitation error in the "cid" parameter in mods/_core/editor/edit_content_folder.php and mods/_core/editor/delete_content.php. A remote attacker can send a specially crafted HTTP POST request to the vulnerable script and execute arbitrary HTML and script code in user`s browser in context of the vulnerable website. Successful exploitation requires that victim is authorized. Successful exploitation requires that victim is logged-in into the application and has access to administrative interface.
Exploitation examples:
http://host/mods/_core/editor/edit_content_folder.php?cid=PAGE_ID"><script>a lert(document.cookie)</s cript>
http://host/mods/_core/editor/delete_content.php?cid=PAGE_ID"><scrip t>alert(document.cookie)</script >

How to Detect Cross-Site Scripting Vulnerabilities
Website Security Test
  • GDPR & PCI DSS Test
  • Website CMS Security Test
  • CSP & HTTP Headers Check
  • WordPress & Drupal Scanning
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Solution:
Install patch 07 to fix the problem.


References:
[1] High-Tech Bridge Advisory HTB22599 - https://www.immuniweb.com/advisory/HTB22599 - Cross-site Scripting (XSS) Vulnerabilities in ATutor
[2] ATutor - atutor.ca - ATutor is a free Open Source Web-based eLearning environment designed with accessibility and adaptability in mind.
[3] Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to developers and security practitioners, CWE is a formal list of software weakness types.

Have additional information to submit?
Please feel free to send us any additional information related to this Advisory, such as vulnerable versions, additional exploitation details and conditions, patches and other relevant details.
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