EFS Easy Chat Server up to 3.1 /registresult.htm Resume 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

A vulnerability was found in EFS Easy Chat Server up to 3.1 (Chat Software) and classified as problematic. This issue affects an unknown functionality of the file /registresult.htm. The manipulation of the argument Resume with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. The summary by CVE is:

Easy Chat Server, in its 3.1 version and before, does not sufficiently encrypt user-controlled inputs, resulting in a Cross-Site Scripting (XSS) vulnerability stored via /registresult.htm (POST method), in the Resume parameter. The XSS is loaded from /register.ghp.

The weakness was disclosed 10/04/2023. The advisory is shared at incibe.es. The identification of this vulnerability is CVE-2023-4495 since 08/23/2023. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

By approaching the search of inurl:registresult.htm it is possible to find vulnerable targets with Google Hacking.

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

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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: 🔍

CNA Base Score: 6.1
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

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

08/23/2023 🔍
10/04/2023 +42 days 🔍
10/04/2023 +0 days 🔍
10/04/2023 +0 days 🔍

Sourcesinfo

Advisory: incibe.es
Status: Not defined

CVE: CVE-2023-4495 (🔍)

Entryinfo

Created: 10/04/2023 05:16 PM
Changes: 10/04/2023 05:16 PM (49)
Complete: 🔍
Cache ID: 18:A1B:40

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