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CVE-2019-15618

Missing escaping of HTML in the Updater of Nextcloud 15.0.5 allowed a reflected XSS when starting...

4.8 Medium

CVE-2019-15618 is a medium vulnerability (CVSS 4.8) in Hackerone Nextcloud Server, published February 4, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.73%, the 54th percentile. No source names a fixed version.

What does this mean?
Severity
4.8 MediumCVSS 3.1, NVD
Exploit chance
0.73%EPSS, 54th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
High
User interaction
Required

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

0.73%Up 0.1 points since Apr 14, 2021
90%50%10%1%

Affected products

What each source reports

NVD Score used4.8

Missing escaping of HTML in the Updater of Nextcloud 15.0.5 allowed a reflected XSS when starting the updater from a malicious location.

Record
CVE-2019-15618
CVSS 3.1
4.8 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0
3.5 LowAV:N/AC:M/Au:S/C:N/I:P/A:N
Weakness
CWE-79
Updated
2026-11-02
CVE ListNo score

Missing escaping of HTML in the Updater of Nextcloud 15.0.5 allowed a reflected XSS when starting the updater from a malicious location.

Record
CVE-2019-15618
Weakness
CWE-79
Updated
2026-11-02
EUVDEUVD-2019-6575No score

Missing escaping of HTML in the Updater of Nextcloud 15.0.5 allowed a reflected XSS when starting the updater from a malicious location.

Record
EUVD-2019-6575
Updated
2026-11-03
GitHub AdvisoriesGHSA-fjhc-75vv-2hgmNo score

Missing escaping of HTML in the Updater of Nextcloud 15.0.5 allowed a reflected XSS when starting...

Missing escaping of HTML in the Updater of Nextcloud 15.0.5 allowed a reflected XSS when starting the updater from a malicious location.

Record
GHSA-fjhc-75vv-2hgm
Updated
2026-11-02
OSV4.8

Missing escaping of HTML in the Updater of Nextcloud 15.0.5 allowed a reflected XSS when starting the updater from a malicious location.

Record
CVE-2019-15618
CVSS 3.1
4.8 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02

History

History
RecordedChangedSources
facts
aliases, productsEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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