CVE-2021-37629: nextcloud richdocuments
Vulnerability summary
CVE-2021-37629 is a medium (CVSS 5.3) vulnerability in nextcloud richdocuments. EPSS estimates a 1.38% chance of exploitation in the next 30 days, higher than 71.6% of scored vulnerabilities.
Timeline
- 07-09-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS trend
Probability
1.38%
Chance of exploitation in the next 30 days
Percentile
72%
Versus all other CVEs
30-day change
0.00 pp
From 1.38% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-200Exposure of Sensitive Information to an Unauthorized ActorThe product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
- CWE-770Allocation of Resources Without Limits or ThrottlingThe product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.
Affected systems
Nextcloud2 products
- richdocuments< 3.8.4 | ≥ 4.0.0, < 4.2.1
- security-advisories< 3.8.4 | ≥ 4.0.0, < 4.2.1
1 vendor · 2 products
References
3 links- github.com/nextcloud/security-advisories/security/advisories/GHSA-gvvr-h36p-8mjxX Refsource CONFIRMThird Party Advisory