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CVE-2020-36249

23
FAUCET Score

CVE-2020-36249 describes a vulnerability in ownCloud Server's File Firewall component, specifically versions prior to 2.8.0, where file-type restrictions on public shares are not properly enforced. This high-severity vulnerability (CVSS 7.5) allows an unauthenticated attacker to achieve high integrity impact with low attack complexity, as it can be exploited over the network without user interaction. There is currently no evidence of active exploitation, nor are there publicly available exploit tools or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.8.0CPE matchmatch criteria
cpe:2.3:a:owncloud:file_firewall:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.83%
Probability of exploitation in next 30 days
EPSS Percentile
53.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0083 is in the 29th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

owncloud.com / security-advisories/bypassing-file-firewall-oc-sa-2020-002
Vendor Advisory