HOMEVULNERABILITIESCVE-2020-10252
HIGH

CVE-2020-10252

CWE-918Published: February 19, 2021· Updated: Jun 17, 2026

8.3
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2020-10252 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), availability disruption (denial of service), with a CVSS base score of 8.3.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityLow
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H

Affected Vendors & Products

owncloud1 product(s)
owncloud
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://blog.hacktivesecurity.com/index.php?controller=post&action=view&id_post=44
ADVISORYhttps://owncloud.com/security-advisories/ssrf-in-add-to-your-owncloud-functionality/
ADVISORYhttps://blog.hacktivesecurity.com/index.php?controller=post&action=view&id_post=44
ADVISORYhttps://owncloud.com/security-advisories/ssrf-in-add-to-your-owncloud-functionality/

All References (6)

→
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

Quick Facts

CVE IDCVE-2020-10252
CVSS Score8.3 / 10
SeverityHIGH
WeaknessCWE-918
CISA KEVNo
Affected1 vendor(s)
PublishedFeb 19, 2021

Related CVEs (CWE-918)

CVE-2019-3905
10.0
CVE-2019-10686
10.0
CVE-2018-19047
10.0
CVE-2018-18843
10.0
CVE-2018-14721
10.0
CVE-2019-9174
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-10252 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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