CVE-2018-3763

Severity Score

4.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In Nextcloud Calendar before 1.5.8 and 1.6.1, a missing sanitization of search results for an autocomplete field could lead to a stored XSS requiring user-interaction. The missing sanitization only affected group names, hence malicious search results could only be crafted by privileged users like admins or group admins.

En Nextcloud Calendar en versiones anteriores a la 1.5.8 y la 1.6.1, la falta de saneamiento de los resultados de búsqueda de un campo de autocompletar podría conducir a Cross-Site Scripting (XSS) persistente que requiere interacción del usuario. La falta de saneamiento solo afectó a los nombres de grupo, por lo que los resultados de búsqueda maliciosos solo podrían ser manipulados por usuarios privilegiados como los administradores o los administradores de grupo.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-12-28 CVE Reserved
2018-07-05 CVE Published
2024-08-05 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://nextcloud.com/security/advisory/?id=nc-sa-2018-004	2023-02-28

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Nextcloud Search vendor "Nextcloud"		Calendar Search vendor "Nextcloud" for product "Calendar"				< 1.5.8 Search vendor "Nextcloud" for product "Calendar" and version " < 1.5.8"		-		Affected
Nextcloud Search vendor "Nextcloud"		Calendar Search vendor "Nextcloud" for product "Calendar"				1.6.0 Search vendor "Nextcloud" for product "Calendar" and version "1.6.0"		-		Affected