Medium severity · published Aug 13, 2018
CVE-2018-3780
A missing sanitization of search results for an autocomplete field in NextCloud Server <13.0.5 could lead to a stored XSS requiring user-interaction
5.4
CVSS
0.9%
EPSS
No
On KEV
Description
A missing sanitization of search results for an autocomplete field in NextCloud Server <13.0.5 could lead to a stored XSS requiring user-interaction. The missing sanitization only affected user names, hence malicious search results could only be crafted by authenticated users.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 59% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NE
nextcloud/server · NextCloud
>13.0.5 · source: vendor
NS
Nextcloud Server · Nextcloud
before 13.0.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-3780
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-3780
Third Party Advisory
https://hackerone.com/reports/383117
Vendor Advisory
https://nextcloud.com/security/advisory/?id=NC-SA-2018-008
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