Medium severity · published Dec 3, 2021
CVE-2021-35415
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
4.8
CVSS
0.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CL
Chamilo Lms · Chamilo
1.11.0 through 1.11.16 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-35415
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-35415
Exploit
https://github.com/andrejspuler/writeups/tree/main/chamilo-lms#multiple-stored-cross-site-scripting-vulnerabilities
Patch
https://github.com/chamilo/chamilo-lms/commit/19189a91d1eac9aa204b9439b82e3e73c8ac2e03
Patch
https://github.com/chamilo/chamilo-lms/commit/cf84be1ca1d9a08ad1341dfbf8df475b13a89072
Patch
https://github.com/chamilo/chamilo-lms/commit/fd54f6194285f949c86060d3b2a7967b43689480
Issue Tracking
https://support.chamilo.org/projects/1/wiki/Security_issues#Issue-61-2021-05-14-Low-impact-very-low-risk-XSS-in-course-name
Issue Tracking
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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