XSS Vulnerability in ownCloud (Core) before 10.5
Summary
CVE-2020-16255: ownCloud (Core) before 10.5 allows XSS in login page 'forgot password.'. Affects ruby across 2 version ranges.
< 2.5.8-r0
< dc16af58beb6050976fd62bf683da0232034e1c6
Fixed in 2.5.8-r0. How to fix ↓
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Background
ownCloud is an open-source file synchronization and sharing solution that allows users to store and access their files from various devices. It provides features like file organization, collaboration, and data security. The vulnerability affects ownCloud Core versions prior to 10.5.
Vulnerability Detail
The vulnerability (CVE-2020-16255) allows for cross-site scripting (XSS) attacks on the login page's 'forgot password' feature. An attacker can inject malicious code into the page, which is then executed in the context of the victim's browser. This can lead to unauthorized access, data theft, and potential compromise of user accounts.
How To Fix
Minimum fixed version
2.5.8-r0
This is the first release that contains the fix.
sudo apk add --upgrade rubyTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users can disable the 'forgot password' feature on the login page until the upgrade is performed. This can be done by modifying the relevant configuration settings in the ownCloud installation.
Conclusion
The XSS vulnerability in ownCloud (Core) before version 10.5 can lead to unauthorized access and potential compromise of user accounts. It is crucial to upgrade to the latest version or apply the recommended fix to mitigate the risk. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability allows for cross-site scripting attacks, which can lead to unauthorized access, data theft, and potential compromise of user accounts.
There is no known exploit available at the moment, but it is important to apply the recommended fix as soon as possible to prevent any potential attacks.
Yes, this vulnerability can be exploited remotely by an attacker who can trick a user into visiting a specially crafted website or clicking on a malicious link.
As a temporary mitigation, users can disable the 'forgot password' feature on the login page until the upgrade is performed. Additionally, users should be cautious when clicking on links or visiting unfamiliar websites.
You can find more information about this vulnerability in the CVE-2020-16255 JSON report available at the following source: https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-16255.json
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