Medium severity · published Feb 4, 2020
CVE-2019-15618
Missing escaping of HTML in the Updater of Nextcloud 15.0.5 allowed a reflected XSS when starting the updater from a malicious location
4.8
CVSS
0.7%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NS
Nextcloud Server · Nextcloud
before 14.0.9; 15.0.0 before 15.0.6 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-15618
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-15618
Permissions Required
https://hackerone.com/reports/515484
Vendor Advisory
https://nextcloud.com/security/advisory/?id=NC-SA-2020-007
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