VDB-219665 · Submit #75175 · CVE-2023-0549

YAFNET up to 3.1.10 Private Message PostPrivateMessage subject/message 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.
4.0	$0-$5k	0.00

Summaryinfo

A vulnerability was found in YAFNET up to 3.1.10. It has been classified as problematic. The affected element is an unknown function of the file /forum/PostPrivateMessage of the component Private Message Handler. The manipulation of the argument subject/message leads to cross site scripting. This vulnerability is referenced as CVE-2023-0549. Remote exploitation of the attack is possible. Furthermore, an exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in YAFNET up to 3.1.10. This issue affects an unknown code block of the file /forum/PostPrivateMessage of the component Private Message Handler. The manipulation of the argument subject/message 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 weakness was published 01/27/2023 by Chun-Li Lin with CHT Security Co., Ltd.. The advisory is shared at drive.google.com. The identification of this vulnerability is CVE-2023-0549. It demands that the victim is doing some kind of user interaction. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The exploit is available at drive.google.com. It is declared as proof-of-concept.

Upgrading to version 3.1.11 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 2237a9d552e258a43570bb478a92a5505e7c8797 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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

Productinfo

Name

YAFNET

Version

License

open-source

Website

Product: https://github.com/YAFNET/YAFNET/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.1
VulDB Meta Temp Score: 4.0

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

NVD Base Score: 5.4
NVD Vector: 🔍

CNA Base Score: 3.5
CNA Vector (VulDB): 🔍

CVSSv2info

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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: YAFNET 3.1.11
Patch: 2237a9d552e258a43570bb478a92a5505e7c8797

Timelineinfo

01/27/2023 🔍
01/27/2023 +0 days 🔍
01/27/2023 +0 days 🔍
02/23/2023 +27 days 🔍

Sourcesinfo

Product: github.com

Advisory: 2237a9d552e258a43570bb478a92a5505e7c8797
Researcher: Chun-Li Lin
Organization: CHT Security Co., Ltd.
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2023-0549 (🔍)
GCVE (CVE): GCVE-0-2023-0549
GCVE (VulDB): GCVE-100-219665
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 01/27/2023 20:02
Updated: 02/23/2023 16:52
Changes: 01/27/2023 20:02 (47), 01/28/2023 10:30 (3), 01/28/2023 17:08 (1), 01/28/2023 17:09 (1), 02/03/2023 08:16 (1), 02/08/2023 08:48 (8), 02/08/2023 08:51 (3), 02/23/2023 16:45 (3), 02/23/2023 16:52 (19)
Complete: 🔍
Submitter: lin7lic
Committer: lin7lic
Cache ID: 216::103

Submitinfo

Accepted

Submit #75175: YAFNET XSS (by lin7lic)