CVE-2021-29659
CVE-2021-29659 is a medium-severity vulnerability in Owncloud Owncloud Server with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v2: 4.0
- EPSS exploit prediction: 1% (68th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Owncloud Owncloud Server
- Published:
- Last modified:
Description
ownCloud 10.7 has an incorrect access control vulnerability, leading to remote information disclosure. Due to a bug in the related API endpoint, the attacker can enumerate all users in a single request by entering three whitespaces. Secondary, the retrieval of all users on a large instance could cause higher than average load on the instance.
Frequently asked questions
- What is CVE-2021-29659?
- ownCloud 10.7 has an incorrect access control vulnerability, leading to remote information disclosure. Due to a bug in the related API endpoint, the attacker can enumerate all users in a single request by entering three whitespaces. Secondary, the retrieval of all users on a large instance could cause higher than average load on the instance.
- How severe is CVE-2021-29659?
- CVE-2021-29659 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2021-29659 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-29659?
- CVE-2021-29659 affects Owncloud Owncloud Server. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-29659?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-29659 published?
- CVE-2021-29659 was published on 2021-05-20 and last updated on 2026-06-17.
References
- https://doc.owncloud.com/server/admin_manual/release_notes.html
- https://owncloud.com/security-advisories/cve-2021-29659/
Affected products (1)
- cpe:2.3:a:owncloud:owncloud_server:10.7.0:-:*:*:*:*:*:*
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