CVE-2019-15618
MEDIUMCVSS 4.8/10EPSS 0.73%
Last modified
CVE-2019-15618 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. Missing escaping of HTML in the Updater of Nextcloud 15.0.5 allowed a reflected XSS when starting the updater from a malicious location.. EPSS estimates a 0.73% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Nextcloud | Nextcloud Server | < 14.0.9 |
| Nextcloud | Nextcloud Server | >= 15.0.0, < 15.0.6 |
References
- https://hackerone.com/reports/515484Permissions Required
- https://nextcloud.com/security/advisory/?id=NC-SA-2020-007Vendor Advisory
- https://hackerone.com/reports/515484Permissions Required
- https://nextcloud.com/security/advisory/?id=NC-SA-2020-007Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2019-15618?
CVE-2019-15618 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.73% probability of exploitation in the next 30 days.
How do I fix CVE-2019-15618?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2019
- CVE-2019-15612A bug in Nextcloud Server 15.0.2 causes pending 2FA logins t…5.9
- CVE-2019-15613A bug in Nextcloud Server 17.0.1 causes the workflow rules t…8
- CVE-2019-15614Missing sanitization in the iOS App 2.24.4 causes an XSS whe…5.4
- CVE-2019-15615A wrong check for the system time in the Android App 3.9.0 c…6.1
- CVE-2019-15616Dangling remote share attempts in Nextcloud 16 allow a DNS p…4.3
- CVE-2019-15617A missing check in Nextcloud Server 17.0.0 allowed an attack…5.4
- CVE-2019-15619Improper neutralization of file names, conversation names an…4.8
- CVE-2019-1562Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultID…
- CVE-2019-15620Improper access control in Nextcloud Talk 6.0.3 leaks the ex…2.7
- CVE-2019-15621Improper permissions preservation in Nextcloud Server 16.0.1…6.5
- CVE-2019-15622Not strictly enough sanitization in the Nextcloud Android ap…2.4
- CVE-2019-15623Exposure of Private Information in Nextcloud Server 16.0.1 c…5.3
Are you affected by CVE-2019-15618?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST