Jelsoft vBulletin up to 2.2.4 memberlist.php $letterbits 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

Summaryinfo

A vulnerability has been found in Jelsoft vBulletin up to 2.2.4 and classified as problematic. The impacted element is an unknown function of the file memberlist.php. Performing a manipulation of the argument $letterbits results in cross site scripting. This vulnerability was named CVE-2002-1678. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability classified as problematic has been found in Jelsoft vBulletin up to 2.2.4 (Forum Software). This affects an unknown part of the file memberlist.php. The manipulation of the argument $letterbits with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality. The summary by CVE is:

Cross-site scripting (XSS) vulnerability in memberlist.php in Jelsoft vBulletin 2.0 rc 2 through 2.2.4 allows remote attackers to steal authentication credentials by injecting script into $letterbits.

The bug was discovered 03/22/2002. The weakness was presented 12/31/2002 (Website). It is possible to read the advisory at xforce.iss.net. This vulnerability is uniquely identified as CVE-2002-1678 since 06/21/2005. 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. Technical details of the vulnerability are known, but there is no available exploit. 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 284 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:memberlist.php it is possible to find vulnerable targets with Google Hacking. The commercial vulnerability scanner Qualys is able to test this issue with plugin 10547 (VBulletin Cross-Site Scripting Vulnerability).

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 databases at X-Force (8619), SecurityFocus (BID 4349†), OSVDB (21356†) and Vulnerability Center (SBV-13516†). See VDB-19324 for similar entry. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

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
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/21/2002 🔍
03/21/2002 +0 days 🔍
03/22/2002 +1 days 🔍
12/31/2002 +284 days 🔍
12/31/2002 +0 days 🔍
06/21/2005 +903 days 🔍
12/21/2006 +548 days 🔍
08/04/2014 +2783 days 🔍
09/02/2025 +4047 days 🔍

Sourcesinfo

Vendor: vbulletin.com

Advisory: xforce.iss.net
Status: Not defined

CVE: CVE-2002-1678 (🔍)
GCVE (CVE): GCVE-0-2002-1678
GCVE (VulDB): GCVE-100-19323
X-Force: 8619
SecurityFocus: 4349 - VBulletin Cross-Site Scripting Vulnerability
OSVDB: 21356 - vBulletin memberlist.php allows remote attacker to execute script code
Vulnerability Center: 13516 - Jelsoft vBulletin XSS in memberlist.php, Medium

See also: 🔍

Entryinfo

Created: 08/04/2014 16:25
Updated: 09/02/2025 09:13
Changes: 08/04/2014 16:25 (59), 07/12/2019 12:38 (4), 09/02/2025 09:13 (18)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!