How severe is CVE-2020-36251?

CVE-2020-36251 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2020-36251 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-36251?

CVE-2020-36251 affects Owncloud. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-36251?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-36251 published?

CVE-2020-36251 was published on 2021-02-19 and last updated on 2026-06-17.

CVE-2020-36251

CVE-2020-36251 is a low-severity vulnerability in Owncloud with a CVSS 3.x base score of 3.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Owncloud
Published: 2021-02-19
Last modified: 2026-06-17

Description

ownCloud Server before 10.3.0 allows an attacker, who has received non-administrative access to a group share, to remove everyone else's access to that share.

Frequently asked questions

What is CVE-2020-36251?: ownCloud Server before 10.3.0 allows an attacker, who has received non-administrative access to a group share, to remove everyone else's access to that share.
How severe is CVE-2020-36251?: CVE-2020-36251 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2020-36251 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-36251?: CVE-2020-36251 affects Owncloud. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-36251?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-36251 published?: CVE-2020-36251 was published on 2021-02-19 and last updated on 2026-06-17.

References

https://owncloud.com/security-advisories/deleting-received-group-share-for-whole-group/

Affected products (1)

cpe:2.3:a:owncloud:owncloud:*:*:*:*:*:*:*:*

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