How severe is CVE-2020-36252?

CVE-2020-36252 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-36252 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-36252?

CVE-2020-36252 affects Owncloud Owncloud Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-36252?

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

When was CVE-2020-36252 published?

CVE-2020-36252 was published on 2021-02-19 and last updated on 2026-06-17.

CVE-2020-36252

CVE-2020-36252 is a medium-severity vulnerability in Owncloud Owncloud Server with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-330.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
CVSS v2: 2.7
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-330
Affected product: Owncloud Owncloud Server
Published: 2021-02-19
Last modified: 2026-06-17

Description

ownCloud Server 10.x before 10.3.1 allows an attacker, who has one outgoing share from a victim, to access any version of any file by sending a request for a predictable ID number.

Frequently asked questions

What is CVE-2020-36252?: ownCloud Server 10.x before 10.3.1 allows an attacker, who has one outgoing share from a victim, to access any version of any file by sending a request for a predictable ID number.
How severe is CVE-2020-36252?: CVE-2020-36252 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-36252 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-36252?: CVE-2020-36252 affects Owncloud Owncloud Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-36252?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-36252 published?: CVE-2020-36252 was published on 2021-02-19 and last updated on 2026-06-17.

References

https://owncloud.com/security-advisories/access-to-all-file-versions/

Affected products (1)

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

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