CVE-2021-45919 : Exploit Details and Defense Strategies
Discover how Studio 42 elFinder through 2.1.31 is prone to XSS attacks via SVG files. Learn about impact, mitigation steps, and the importance of updating to version 2.1.32.
Studio 42 elFinder through 2.1.31 is susceptible to XSS attacks through SVG documents.
Understanding CVE-2021-45919
What is CVE-2021-45919?
Studio 42 elFinder through version 2.1.31 contains a vulnerability that allows for Cross-Site Scripting (XSS) exploits using SVG files.
The Impact of CVE-2021-45919
This vulnerability could enable malicious actors to execute arbitrary script code in the context of a victim's browser session, potentially leading to unauthorized actions or data theft.
Technical Details of CVE-2021-45919
Vulnerability Description
The security flaw in Studio 42 elFinder through 2.1.31 permits XSS attacks facilitated by SVG documents.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions: All versions up to 2.1.31 are impacted.
Exploitation Mechanism
The vulnerability can be exploited by crafting SVG files with malicious scripts that, when executed, can compromise the user's browser.
Mitigation and Prevention
Immediate Steps to Take
- Avoid opening SVG files from untrusted or unfamiliar sources.
- Implement content security policies to minimize the risk of XSS attacks.
Long-Term Security Practices
- Regularly update software to patch known vulnerabilities.
- Educate users about the dangers of opening files from unknown sources.
- Employ web application firewalls to filter and block malicious traffic.
- Monitor network traffic for suspicious activity.
Patching and Updates
Ensure that Studio 42 elFinder is updated to version 2.1.32 or newer to address this XSS vulnerability.