CVE-2021-32741

Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.011, and 21.0.3, there was a lack of ratelimiting on the public share link mount endpoint. This may have allowed an attacker to enumerate potentially valid share tokens. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
GitHub_MCNA
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 55%
VendorProductVersion
nextcloudnextcloud_server
𝑥
< 19.0.13
nextcloudnextcloud_server
20.0.0 ≤
𝑥
< 20.0.11
nextcloudnextcloud_server
21.0.0 ≤
𝑥
< 21.0.3
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-crvj-vmf7-xrvr
https://github.com/nextcloud/server/pull/26958
https://hackerone.com/reports/1192144
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-crvj-vmf7-xrvr
https://github.com/nextcloud/server/pull/26958
https://hackerone.com/reports/1192144