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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.8 MEDIUM
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
hackeroneCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 42%
VendorProductVersion
nextcloudnextcloud_server
𝑥
< 14.0.9
nextcloudnextcloud_server
15.0.0 ≤
𝑥
< 15.0.6
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://hackerone.com/reports/515484
https://nextcloud.com/security/advisory/?id=NC-SA-2020-007
https://hackerone.com/reports/515484
https://nextcloud.com/security/advisory/?id=NC-SA-2020-007