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CVE-2020-8154

20
FAUCET Score

CVE-2020-8154 is an Insecure Direct Object Reference (IDOR) vulnerability in Nextcloud Server versions prior to 18.0.3. This flaw allows an authenticated attacker to remotely wipe the devices of other users by sending a specially crafted request directly to the affected endpoint. Rated 7.7 HIGH on the CVSS scale, this vulnerability has a low attack complexity and requires only low privileges, leading to a high impact on availability (data destruction). There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 17.0.5CPE matchmatch criteria
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*
>= 18.0.0, < 18.0.3CPE matchmatch criteria
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.7HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.1
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.77%
Probability of exploitation in next 30 days
EPSS Percentile
75.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0177 is in the 74th percentile among its peer group of 17,844 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 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

lists.opensuse.org / opensuse-security-announce/2020-05/msg00037.html
lists.opensuse.org / opensuse-security-announce/2020-05/msg00038.html
lists.opensuse.org / opensuse-security-announce/2020-05/msg00040.html
lists.opensuse.org / opensuse-security-announce/2020-10/msg00019.html
hackerone.com / reports/819807
ExploitThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/KC6HLX5SG4PZO6Y54D2LFJ4ATG76BKOP
nextcloud.com / security/advisory
Vendor Advisory