Postnuke 0.64/0.70/0.71/0.703 IMG Tag 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.
4.3$0-$5k0.00

A vulnerability has been found in Postnuke 0.64/0.70/0.71/0.703 (Content Management System) and classified as problematic. Affected by this vulnerability is an unknown functionality of the component IMG Tag Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-80. 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. As an impact it is known to affect integrity. The summary by CVE is:

Cross-site scripting vulnerabilities in PostBoard 2.0.1 and earlier allows remote attackers to execute script as other users via (1) an [IMG] tag when BBCode is enabled, or (2) in a topic title.

The bug was discovered 04/16/2002. The weakness was published 07/03/2002 (Website). It is possible to read the advisory at online.securityfocus.com. This vulnerability is known as CVE-2002-0535. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 78 days. During that time the estimated underground price was around $0-$5k.

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

The vulnerability is also documented in the vulnerability database at X-Force (8881).

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

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

CVSSv2info

AVACAuCIA
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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-80 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

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

04/16/2002 🔍
04/19/2002 +3 days 🔍
07/03/2002 +75 days 🔍
07/03/2002 +0 days 🔍
07/03/2002 +0 days 🔍
12/12/2004 +893 days 🔍
07/11/2014 +3498 days 🔍
06/03/2019 +1788 days 🔍

Sourcesinfo

Advisory: online.securityfocus.com
Status: Not defined

CVE: CVE-2002-0535 (🔍)
X-Force: 8881
Vulnerability Center: 6401 - XSS in PostBoard 2.0, 2.0.1 via IMG Tag, Medium
SecurityFocus: 4559 - PostBoard BBCode IMG Tag Script Injection Vulnerability
OSVDB: 9247 - PostBoard IMG tag cross-site scripting

Entryinfo

Created: 07/11/2014 14:18
Updated: 06/03/2019 20:30
Changes: 07/11/2014 14:18 (57), 06/03/2019 20:30 (3)
Complete: 🔍

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