CVE-2021-37628
7.5 · HIGHOverview
CVE-2021-37628 is a high-severity vulnerability affecting nextcloud richdocuments. It was published on September 7, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Nextcloud Richdocuments is an open source collaborative office suite. In affected versions the File Drop features ("Upload Only" public link shares in Nextcloud) can be bypassed using the Nextcloud Richdocuments app. An attacker was able to read arbitrary files in such a share. It is recommended that the Nextcloud Richdocuments is upgraded to 3.8.4 or 4.2.1. If upgrading is not possible then it is recommended to disable the Richdocuments application.
Remediation
Check the references section for vendor advisories and patches from nextcloud. Update richdocuments to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| nextcloud | richdocuments | >= 0, < 3.8.4 | Affected |
References
Frequently Asked Questions
What is CVE-2021-37628?
CVE-2021-37628 is a high-severity vulnerability affecting nextcloud richdocuments. It was published on September 7, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2021-37628?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-37628?
Check the references section for vendor advisories and patches from nextcloud. Update richdocuments to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-37628?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-37628 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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