Medium severity · published May 8, 2017
CVE-2017-0893
Nextcloud Server before 9.0.58 and 10.0.5 and 11.0.3 are shipping a vulnerable JavaScript library for sanitizing untrusted user-input which suffered from a XSS vulnerability…
5.4
CVSS
0.6%
EPSS
No
On KEV
Description
Nextcloud Server before 9.0.58 and 10.0.5 and 11.0.3 are shipping a vulnerable JavaScript library for sanitizing untrusted user-input which suffered from a XSS vulnerability caused by a behaviour change in Safari 10.1 and 10.2. Note that Nextcloud employs a strict Content-Security-Policy preventing exploitation of this XSS issue on modern web browsers.
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)0.6% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NS
Nextcloud Server · Nextcloud
before 9.0.58; 10.0.0 before 10.0.5; 11.0.0 before 11.0.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-0893
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-0893
Third Party Advisory
https://hackerone.com/reports/222838
Vendor Advisory
https://nextcloud.com/security/advisory/?id=nc-sa-2017-010
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