Vulnerability CVE-2021-35415
Published: 2021-12-03

Description:
A stored cross-site scripting (XSS) vulnerability allows attackers to execute arbitrary web scripts or HTML via a crafted payload in the course "Title" and "Content" fields.

Type:

CWE-79

 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))

CVSS2 => (AV:N/AC:M/Au:S/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
3.5/10
2.9/10
6.8/10
Exploit range
Attack complexity
Authentication
Remote
Medium
Single time
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Chamilo -> Chamilo lms 

 References:
https://github.com/andrejspuler/writeups/tree/main/chamilo-lms#multiple-stored-cross-site-scripting-vulnerabilities
https://support.chamilo.org/projects/1/wiki/Security_issues#Issue-63-2021-05-14-Low-impact-moderate-risk-XSS-in-course-documents
https://support.chamilo.org/projects/1/wiki/Security_issues#Issue-64-2021-05-14-Low-impact-low-risk-XSS-in-course-document-title-on-upload
https://github.com/chamilo/chamilo-lms/commit/cf84be1ca1d9a08ad1341dfbf8df475b13a89072
https://support.chamilo.org/projects/1/wiki/Security_issues#Issue-61-2021-05-14-Low-impact-very-low-risk-XSS-in-course-name
https://github.com/chamilo/chamilo-lms/commit/fd54f6194285f949c86060d3b2a7967b43689480
https://github.com/chamilo/chamilo-lms/commit/19189a91d1eac9aa204b9439b82e3e73c8ac2e03
https://support.chamilo.org/projects/1/wiki/Security_issues#Issue-62-2021-05-14-Low-impact-low-risk-XSS-in-course-description
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