CVE-2022-41681: CWE-434: unrestricted upload of file with dangerous type in Forma Forma LMS
There is a vulnerability on Forma LMS version 3.1.0 and earlier that could allow an authenticated attacker (with the role of student) to privilege escalate in order to upload a Zip file through the SCORM importer feature. The exploitation of this vulnerability could lead to a remote code injection.
AI Analysis
Technical Summary
CVE-2022-41681 is a critical security vulnerability identified in Forma LMS, an open-source Learning Management System widely used for e-learning and training purposes. The vulnerability affects versions 3.1.0 and earlier, including version 3.0.1. It stems from an unrestricted file upload flaw (CWE-434) in the SCORM importer feature of the platform. Specifically, an authenticated user with the role of 'student' can exploit this flaw to upload a malicious ZIP file without proper validation or restrictions on file types. This improper handling allows the attacker to escalate privileges beyond their intended access level and potentially execute remote code on the server hosting the LMS. The vulnerability is particularly severe because it requires only low complexity to exploit (low attack complexity), no user interaction beyond authentication, and can be triggered remotely over the network (network attack vector). The impact includes full compromise of confidentiality, integrity, and availability of the affected system, as indicated by the CVSS 3.1 base score of 9.9 (critical). Although no public exploits have been reported in the wild yet, the nature of the vulnerability makes it a prime target for attackers aiming to gain persistent access or disrupt educational environments. The vulnerability was published on October 31, 2022, and has been assigned by INCIBE and enriched by CISA, underscoring its significance. The lack of a patch link in the provided data suggests that organizations using affected versions should urgently seek updates or mitigations from the vendor or community.
Potential Impact
For European organizations, especially educational institutions, training providers, and corporate learning departments relying on Forma LMS, this vulnerability poses a significant risk. Successful exploitation could lead to unauthorized remote code execution, allowing attackers to steal sensitive educational data, manipulate course content, or disrupt learning operations. Given the criticality, attackers could also use compromised LMS servers as footholds to pivot into broader organizational networks, potentially accessing personal data of students and staff, intellectual property, or other sensitive information. The impact extends beyond confidentiality breaches to include integrity violations (altered learning materials or grades) and availability issues (service disruption or denial of access). This could damage institutional reputation, violate data protection regulations such as GDPR, and result in financial and legal consequences. The fact that exploitation requires only student-level authentication means that even internal users or compromised student accounts could be leveraged for attacks, increasing the threat surface within European educational environments.
Mitigation Recommendations
European organizations should immediately assess their use of Forma LMS and identify any instances running version 3.1.0 or earlier. Since no direct patch link is provided, organizations should: 1) Contact Forma LMS vendor or community channels to obtain the latest patched version or security advisories. 2) Temporarily disable or restrict access to the SCORM importer feature for student roles until a patch is applied. 3) Implement strict file upload validation and filtering at the web application firewall (WAF) or reverse proxy level to block ZIP files or other potentially dangerous file types from being uploaded by low-privilege users. 4) Monitor LMS logs for unusual upload activity or privilege escalation attempts. 5) Enforce strong authentication and account monitoring to detect compromised student accounts. 6) Conduct network segmentation to isolate LMS servers from critical internal systems, limiting lateral movement if compromise occurs. 7) Educate administrators and users about the risk and signs of exploitation. These targeted mitigations go beyond generic advice by focusing on immediate risk reduction through feature restriction, enhanced monitoring, and network controls while awaiting vendor patches.
Affected Countries
Germany, France, United Kingdom, Italy, Spain, Netherlands, Poland, Sweden, Belgium, Austria
CVE-2022-41681: CWE-434: unrestricted upload of file with dangerous type in Forma Forma LMS
Description
There is a vulnerability on Forma LMS version 3.1.0 and earlier that could allow an authenticated attacker (with the role of student) to privilege escalate in order to upload a Zip file through the SCORM importer feature. The exploitation of this vulnerability could lead to a remote code injection.
AI-Powered Analysis
Technical Analysis
CVE-2022-41681 is a critical security vulnerability identified in Forma LMS, an open-source Learning Management System widely used for e-learning and training purposes. The vulnerability affects versions 3.1.0 and earlier, including version 3.0.1. It stems from an unrestricted file upload flaw (CWE-434) in the SCORM importer feature of the platform. Specifically, an authenticated user with the role of 'student' can exploit this flaw to upload a malicious ZIP file without proper validation or restrictions on file types. This improper handling allows the attacker to escalate privileges beyond their intended access level and potentially execute remote code on the server hosting the LMS. The vulnerability is particularly severe because it requires only low complexity to exploit (low attack complexity), no user interaction beyond authentication, and can be triggered remotely over the network (network attack vector). The impact includes full compromise of confidentiality, integrity, and availability of the affected system, as indicated by the CVSS 3.1 base score of 9.9 (critical). Although no public exploits have been reported in the wild yet, the nature of the vulnerability makes it a prime target for attackers aiming to gain persistent access or disrupt educational environments. The vulnerability was published on October 31, 2022, and has been assigned by INCIBE and enriched by CISA, underscoring its significance. The lack of a patch link in the provided data suggests that organizations using affected versions should urgently seek updates or mitigations from the vendor or community.
Potential Impact
For European organizations, especially educational institutions, training providers, and corporate learning departments relying on Forma LMS, this vulnerability poses a significant risk. Successful exploitation could lead to unauthorized remote code execution, allowing attackers to steal sensitive educational data, manipulate course content, or disrupt learning operations. Given the criticality, attackers could also use compromised LMS servers as footholds to pivot into broader organizational networks, potentially accessing personal data of students and staff, intellectual property, or other sensitive information. The impact extends beyond confidentiality breaches to include integrity violations (altered learning materials or grades) and availability issues (service disruption or denial of access). This could damage institutional reputation, violate data protection regulations such as GDPR, and result in financial and legal consequences. The fact that exploitation requires only student-level authentication means that even internal users or compromised student accounts could be leveraged for attacks, increasing the threat surface within European educational environments.
Mitigation Recommendations
European organizations should immediately assess their use of Forma LMS and identify any instances running version 3.1.0 or earlier. Since no direct patch link is provided, organizations should: 1) Contact Forma LMS vendor or community channels to obtain the latest patched version or security advisories. 2) Temporarily disable or restrict access to the SCORM importer feature for student roles until a patch is applied. 3) Implement strict file upload validation and filtering at the web application firewall (WAF) or reverse proxy level to block ZIP files or other potentially dangerous file types from being uploaded by low-privilege users. 4) Monitor LMS logs for unusual upload activity or privilege escalation attempts. 5) Enforce strong authentication and account monitoring to detect compromised student accounts. 6) Conduct network segmentation to isolate LMS servers from critical internal systems, limiting lateral movement if compromise occurs. 7) Educate administrators and users about the risk and signs of exploitation. These targeted mitigations go beyond generic advice by focusing on immediate risk reduction through feature restriction, enhanced monitoring, and network controls while awaiting vendor patches.
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Technical Details
- Data Version
- 5.1
- Assigner Short Name
- INCIBE
- Date Reserved
- 2022-09-28T00:00:00.000Z
- Cisa Enriched
- true
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 682d981bc4522896dcbd9ed5
Added to database: 5/21/2025, 9:08:43 AM
Last enriched: 7/5/2025, 4:27:48 PM
Last updated: 8/3/2025, 12:59:27 PM
Views: 12
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