What’s Vulnerable › Vulnerabilities

CVE-2019-15613

• Severity: high (CVSS 8.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-02-04 · updated 2026-06-17
• Weakness: CWE-20

Description

A bug in Nextcloud Server 17.0.1 causes the workflow rules to depend their behaviour on the file extension when checking file mimetypes.

Affected products

• Nextcloud Server: before 15.0.14; from 16.0.0 before 16.0.7; from 17.0.0 before 17.0.2 — fixed in 15.0.14, 16.0.7, 17.0.2
• openSUSE Backports: sle-15-sp1

How to fix

Upgrade to a fixed version: Nextcloud Server 15.0.14, 16.0.7, 17.0.2. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00019.html
• http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00022.html
• https://hackerone.com/reports/697959
• https://nextcloud.com/security/advisory/?id=NC-SA-2020-002
• http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00019.html
• http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00022.html
• https://hackerone.com/reports/697959
• https://nextcloud.com/security/advisory/?id=NC-SA-2020-002

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