CVE-2019-15624: nextcloud nextcloud_server Improper Input Validation
CVSS: 4.9v3.1MediumModified
Published 04-02-2020Last modified 05-08-2024
Vulnerability summary
CVE-2019-15624 is a medium (CVSS 4.9) Improper Input Validation vulnerability in nextcloud nextcloud_server. EPSS estimates a 1.47% chance of exploitation in the next 30 days, higher than 73.5% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
4.9/10
010
Medium · v3.1 (NVD)EPSS score
1.47%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 2 · Related 2Timeline
- 04-02-2020PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
Improper Input Validation in Nextcloud Server 15.0.7 allows group admins to create users with IDs of system folders.
CVSS metrics
2 scores · 1 source · 2 versionsMedium 4.9Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:NSourcesSingle source
Medium 4.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
1.47%
Chance of exploitation in the next 30 days
Percentile
74%
Versus all other CVEs
30-day change
0.00 pp
From 1.47% on 21-09-2026
21-09-202621-10-2026
EPSS score1.47%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (hackerone.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Nextcloud1 product
- nextcloud_server< 14.0.11 | ≥ 15.0.0, < 15.0.8
Opensuse1 product
- backportssle-15:sp1
Suse1 product
3 vendors · 3 products
References
4 links- lists.opensuse.org/opensuse-security-announce/2020-02/msg00019.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-02/msg00022.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory