CVE-2020-10252

Name: CVE-2020-10252
Creator: NVD / NIST
Published: 2021-02-19T07:15:13.263+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.3/10EPSS 1.25%

Last modified Jun 17, 2026

CVE-2020-10252 is a high-severity vulnerability rated 8.3/10 on the CVSS scale. An issue was discovered in ownCloud before 10.4. Because of an SSRF issue (via the apps/files_sharing/external remote parameter), an authenticated attacker can interact with local services blindly (aka Blind SSRF) or conduct a Denial Of Service attack.. EPSS estimates a 1.25% chance of exploitation in the next 30 days.

Description

An issue was discovered in ownCloud before 10.4. Because of an SSRF issue (via the apps/files_sharing/external remote parameter), an authenticated attacker can interact with local services blindly (aka Blind SSRF) or conduct a Denial Of Service attack.

Metrics

CVSS 3.1

8.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H

EPSS Probability

1.25%

65.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-918

Affected Software

Vendor	Product	Versions
Owncloud	Owncloud	< 10.4.0

References

https://blog.hacktivesecurity.com/index.php?controller=post&action=view&id_post=44Exploit, Third Party Advisory
https://owncloud.com/security-advisories/ssrf-in-add-to-your-owncloud-functionality/Vendor Advisory
https://owncloud.org/changelog/server/Product, Release Notes
https://blog.hacktivesecurity.com/index.php?controller=post&action=view&id_post=44Exploit, Third Party Advisory
https://owncloud.com/security-advisories/ssrf-in-add-to-your-owncloud-functionality/Vendor Advisory
https://owncloud.org/changelog/server/Product, Release Notes

Timeline

Published: Feb 19, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-10252?

How severe is CVE-2020-10252?

CVE-2020-10252 has a CVSS score of 8.3/10 (HIGH severity). The EPSS model estimates a 1.25% probability of exploitation in the next 30 days.

How do I fix CVE-2020-10252?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-10252?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST