CVE-2020-2491 : This cross-site scripting vulnerability in Photo Station allows remote attackers

This cross-site scripting vulnerability in Photo Station allows remote attackers to inject malicious code. QANP We have already fixed this vulnerability in the following versions of Photo Station. QTS 4.5.1: Photo Station 6.0.12 and later QTS 4.4.3: Photo Station 6.0.12 and later QTS 4.3.6: Photo Station 5.7.12 and later QTS 4.3.4: Photo Station 5.7.13 and later QTS 4.3.3: Photo Station 5.4.10 and later QTS 4.2.6: Photo Station 5.2.11 and later

Published 2020-12-10 04:15:12

Updated 2020-12-11 14:17:05

Source QNAP Systems, Inc.

View at NVD, CVE.org

Vulnerability category: Cross site scripting (XSS)

Products affected by CVE-2020-2491

Qnap » Photo Station
Versions before (<) 5.7.12
cpe:2.3:a:qnap:photo_station:*:*:*:*:*:*:*:*
Matching versions
When used together with: Qnap » QTS » Version: 4.3.6
Qnap » Photo Station
Versions before (<) 6.0.12
cpe:2.3:a:qnap:photo_station:*:*:*:*:*:*:*:*
Matching versions
When used together with: Qnap » QTS » Version: 4.5.1
Qnap » Photo Station
Versions before (<) 5.7.13
cpe:2.3:a:qnap:photo_station:*:*:*:*:*:*:*:*
Matching versions
When used together with: Qnap » QTS » Version: 4.3.4
Qnap » Photo Station
Versions before (<) 5.4.10
cpe:2.3:a:qnap:photo_station:*:*:*:*:*:*:*:*
Matching versions
When used together with: Qnap » QTS » Version: 4.3.3
Qnap » Photo Station
Versions before (<) 5.2.11
cpe:2.3:a:qnap:photo_station:*:*:*:*:*:*:*:*
Matching versions
When used together with: Qnap » QTS » Version: 4.2.6

Exploit prediction scoring system (EPSS) score for CVE-2020-2491

EPSS FAQ

0.12%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 45 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-2491

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:P/A:N	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
6.1	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	2.8	2.7	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Changed Confidentiality: Low Integrity: Low Availability: None

CWE ids for CVE-2020-2491

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

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
Assigned by:
- nvd@nist.gov (Primary)
- security@qnapsecurity.com.tw (Secondary)
CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages.

Assigned by: security@qnapsecurity.com.tw (Secondary)

References for CVE-2020-2491

https://www.qnap.com/en/security-advisory/qsa-20-15

Vendor Advisory

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Vulnerability Details : CVE-2020-2491

Products affected by CVE-2020-2491

Exploit prediction scoring system (EPSS) score for CVE-2020-2491

CVSS scores for CVE-2020-2491

CWE ids for CVE-2020-2491

References for CVE-2020-2491