Information disclosure in Nextcloud Richdocuments
CVE-2021-37629
Nextcloud Richdocuments is an open source collaborative office suite. In affected versions there is a lack of rate limiting on the Richdocuments OCS endpoint. This may have allowed an attacker to enumerate potentially valid share tokens. It is recommended that the Nextcloud Richdocuments app is upgraded to either 3.8.4 or 4.2.1 to resolve. For users unable to upgrade it is recommended that the Richdocuments application be disabled.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.014 (71.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
- Nextcloud Richdocuments
- Nextcloud Security-Advisories — versions < 3.8.4, >= 4.0.0, < 4.2.1
Weakness classification (CWE)
References
- github.com/nextcloud/security-advisories/security/advisories/GHSA-gvvr-h36p-8mjx (Third Party Advisory)
- github.com/nextcloud/richdocuments/pull/1663 (Third Party Advisory)
- hackerone.com/reports/1258750 (Permissions Required, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-37629?
- CVE-2021-37629 is a medium-severity vulnerability in Nextcloud Richdocuments, classified under Information Disclosure. CVSS score: 5.3/10. Published 2021-09-07.
- How severe is CVE-2021-37629?
- Medium severity. CVSS v3 base score is 5.3 out of 10.