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CVE-2019-15613

24
FAUCET Score

CVE-2019-15613 is a high-severity vulnerability affecting Nextcloud Server versions prior to 17.0.2, where workflow rules incorrectly rely on file extensions for mimetype checks. This flaw, with a CVSS score of 8.0, allows an authenticated attacker to potentially achieve high impact on confidentiality, integrity, and availability through a low-complexity network attack requiring user interaction. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 15.0.14CPE matchmatch criteria
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*
>= 16.0.0, < 16.0.7CPE matchmatch criteria
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*
>= 17.0.0, < 17.0.2CPE matchmatch criteria
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*
sle-15CPE matchmatch criteria
cpe:2.3:o:opensuse:backports:sle-15:sp1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.0HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.1
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.13%
Probability of exploitation in next 30 days
EPSS Percentile
63.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0113 is in the 80th percentile among its peer group of 890 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.1 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/2020-02/msg00019.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2020-02/msg00022.html
Mailing ListThird Party Advisory
hackerone.com / reports/697959
PatchThird Party Advisory
nextcloud.com / security/advisory
Broken LinkVendor Advisory