Chat Anywhere Extension 2.4.0 on Chrome Content Security Policy Message cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Chat Anywhere Extension 2.4.0 on Chrome. It has been rated as problematic. Affected is an unknown function of the component Content Security Policy. Performing a manipulation as part of Message results in cross site scripting. This vulnerability is reported as CVE-2018-20524. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability classified as problematic has been found in Chat Anywhere Extension 2.4.0 on Chrome (Chat Software). This affects an unknown function of the component Content Security Policy. The manipulation as part of a Message leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. 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. This is going to have an impact on integrity. The summary by CVE is:

The Chat Anywhere extension 2.4.0 for Chrome allows XSS via crafted use of <<a> in a message, because a danmuWrapper DIV element in chatbox-only\danmu.js is outside the scope of a Content Security Policy (CSP).

The bug was discovered 12/27/2018. The weakness was disclosed 12/27/2018 (Website). The advisory is shared at vul.su.ki. This vulnerability is uniquely identified as CVE-2018-20524 since 12/27/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/27/2018 🔍
12/27/2018 +0 days 🔍
12/27/2018 +0 days 🔍
12/27/2018 +0 days 🔍
12/28/2018 +1 days 🔍
04/24/2020 +483 days 🔍

Sourcesinfo

Advisory: vul.su.ki
Status: Not defined

CVE: CVE-2018-20524 (🔍)
GCVE (CVE): GCVE-0-2018-20524
GCVE (VulDB): GCVE-100-128457

Entryinfo

Created: 12/28/2018 10:41
Updated: 04/24/2020 16:15
Changes: 12/28/2018 10:41 (57), 04/24/2020 16:15 (1)
Complete: 🔍
Cache ID: 216::103

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