CVE-2020-2503

Stored cross-site scripting vulnerability in QES

Severity Score

5.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

If exploited, this stored cross-site scripting vulnerability could allow remote attackers to inject malicious code in File Station. QNAP has already fixed these issues in QES 2.1.1 Build 20201006 and later.

Si se explota, esta vulnerabilidad de tipo cross-site scripting almacenado podría permitir a atacantes remotos inyectar código malicioso en File Station. QNAP ya ha corregido estos problemas en QES versiones 2.1.1 Build 20201006 y posteriores

*Credits: TIM Security Red Team Research

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

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

2019-12-09 CVE Reserved
2020-12-24 CVE Published
2023-03-08 EPSS Updated
2024-09-17 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
CWE-749: Exposed Dangerous Method or Function

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.qnap.com/zh-tw/security-advisory/qsa-20-17	2020-12-28

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Qnap Search vendor "Qnap"		Qes Search vendor "Qnap" for product "Qes"				< 2.1.1 Search vendor "Qnap" for product "Qes" and version " < 2.1.1"		-		Affected
Qnap Search vendor "Qnap"		Qes Search vendor "Qnap" for product "Qes"				2.1.1 Search vendor "Qnap" for product "Qes" and version "2.1.1"		-		Affected
Qnap Search vendor "Qnap"		Qes Search vendor "Qnap" for product "Qes"				2.1.1 Search vendor "Qnap" for product "Qes" and version "2.1.1"		build_20200211		Affected
Qnap Search vendor "Qnap"		Qes Search vendor "Qnap" for product "Qes"				2.1.1 Search vendor "Qnap" for product "Qes" and version "2.1.1"		build_20200303		Affected
Qnap Search vendor "Qnap"		Qes Search vendor "Qnap" for product "Qes"				2.1.1 Search vendor "Qnap" for product "Qes" and version "2.1.1"		build_20200319		Affected
Qnap Search vendor "Qnap"		Qes Search vendor "Qnap" for product "Qes"				2.1.1 Search vendor "Qnap" for product "Qes" and version "2.1.1"		build_20200424		Affected
Qnap Search vendor "Qnap"		Qes Search vendor "Qnap" for product "Qes"				2.1.1 Search vendor "Qnap" for product "Qes" and version "2.1.1"		build_20200515		Affected
Qnap Search vendor "Qnap"		Qes Search vendor "Qnap" for product "Qes"				2.1.1 Search vendor "Qnap" for product "Qes" and version "2.1.1"		build_20200811		Affected