VDB-222352 · CVE-2023-27641 · GCVE-0-2023-27641

L-Soft LISTSERV prior 16.5 URL wa.exe cross site scripting

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.6	$0-$5k	0.00

Summaryinfo

A vulnerability was found in L-Soft LISTSERV and classified as problematic. This impacts an unknown function of the file wa.exe of the component URL Handler. Executing a manipulation can lead to cross site scripting. This vulnerability is tracked as CVE-2023-27641. The attack can be launched remotely. Moreover, an exploit is present. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in L-Soft LISTSERV. It has been declared as problematic. This vulnerability affects an unknown code of the file wa.exe of the component URL Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity. CVE summarizes:

The REPORT (after z but before a) parameter in wa.exe in L-Soft LISTSERV 16.5 before 17 allows an attacker to conduct XSS attacks via a crafted URL.

The weakness was disclosed 03/06/2023. The advisory is shared for download at github.com. This vulnerability was named CVE-2023-27641 since 03/05/2023. Successful exploitation requires user interaction by the victim. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1059.007.

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

Upgrading to version 16.5 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

L-Soft

Name

LISTSERV

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.6

VulDB Base Score: 3.5
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: LISTSERV 16.5

Timelineinfo

03/05/2023 🔍
03/06/2023 +1 days 🔍
03/06/2023 +0 days 🔍
03/31/2023 +25 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2023-27641 (🔍)
GCVE (CVE): GCVE-0-2023-27641
GCVE (VulDB): GCVE-100-222352
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/06/2023 07:06
Updated: 03/31/2023 15:35
Changes: 03/06/2023 07:06 (43), 03/31/2023 15:35 (11)
Complete: 🔍
Cache ID: 216::103