CVE-2019-15618 — MEDIUM (4.8)

Q: What is CVE-2019-15618?

CVE-2019-15618 is a vulnerability with a CVSS score of 4.8 (MEDIUM). Missing escaping of HTML in the Updater of Nextcloud 15.0.5 allowed a reflected XSS when starting the updater from a malicious location.

Q: How severe is CVE-2019-15618?

CVE-2019-15618 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2019-15618?

Check the references section above for vendor advisories and patch information. Affected products include: Nextcloud Nextcloud Server.

Vulnerability Description

Missing escaping of HTML in the Updater of Nextcloud 15.0.5 allowed a reflected XSS when starting the updater from a malicious location.

CVSS Score

4.8

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Nextcloud	Nextcloud Server	< 14.0.9

Related Weaknesses (CWE)

CWE-79

References

https://hackerone.com/reports/515484Permissions Required
https://nextcloud.com/security/advisory/?id=NC-SA-2020-007Vendor Advisory
https://hackerone.com/reports/515484Permissions Required
https://nextcloud.com/security/advisory/?id=NC-SA-2020-007Vendor Advisory

FAQ

What is CVE-2019-15618?

CVE-2019-15618 is a vulnerability with a CVSS score of 4.8 (MEDIUM). Missing escaping of HTML in the Updater of Nextcloud 15.0.5 allowed a reflected XSS when starting the updater from a malicious location.

How severe is CVE-2019-15618?

CVE-2019-15618 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-15618?

Check the references section above for vendor advisories and patch information. Affected products include: Nextcloud Nextcloud Server.