CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.0 | $0-$5k | 0.00 |
A vulnerability classified as problematic has been found in phpBB (Forum Software). Affected is some unknown processing of the file privmsg.php. The manipulation 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, integrity, and availability. CVE summarizes:
Cross-site scripting (XSS) vulnerability in the private message box implementation (privmsg.php) in phpBB 2.0.x allows remote authenticated users to inject arbitrary web script or HTML via the "Message body" field in a message to a non-existent user.
The bug was discovered 12/07/2006. The weakness was disclosed 12/10/2006 (Website). The advisory is shared for download at xforce.iss.net. This vulnerability is traded as CVE-2006-6421 since 12/09/2006. It is possible to launch the attack remotely. Required for exploitation is a authentication. Successful exploitation requires user interaction by the victim. Technical details and a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1059.007.
The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:privmsg.php it is possible to find vulnerable targets with Google Hacking. The vulnerability scanner Nessus provides a plugin with the ID 23968 (phpBB < 2.0.22 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r.
Upgrading eliminates this vulnerability.
The vulnerability is also documented in the databases at X-Force (30776) and Tenable (23968). The entry 33799 is pretty similar.
Product
Type
Name
Version
- 2.0
- 2.0 Beta1
- 2.0 Rc1
- 2.0 Rc2
- 2.0 Rc3
- 2.0 Rc4
- 2.0.0
- 2.0.1
- 2.0.2
- 2.0.3
- 2.0.4
- 2.0.5
- 2.0.6
- 2.0.6c
- 2.0.6d
- 2.0.7
- 2.0.7a
- 2.0.8
- 2.0.8a
- 2.0.9
- 2.0.10
- 2.0.11
- 2.0.12
- 2.0.13
- 2.0.14
- 2.0.15
- 2.0.16
- 2.0.17
- 2.0.18
- 2.0.19
- 2.0.20
- 2.0.21
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.5VulDB Meta Temp Score: 5.0
VulDB Base Score: 5.5
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Cross site scriptingCWE: CWE-80 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Google Hack: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 23968
Nessus Name: phpBB < 2.0.22 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
12/07/2006 🔍12/07/2006 🔍
12/08/2006 🔍
12/09/2006 🔍
12/10/2006 🔍
12/10/2006 🔍
01/03/2007 🔍
01/08/2007 🔍
01/11/2007 🔍
03/12/2015 🔍
07/13/2019 🔍
Sources
Product: phpbb.comAdvisory: xforce.iss.net
Status: Not defined
Confirmation: 🔍
CVE: CVE-2006-6421 (🔍)
X-Force: 30776
Vulnerability Center: 13865 - phpBB XSS via privmsg.php, Medium
SecurityFocus: 22001 - phpBB Privmsg.PHP HTML Injection Vulnerability
Secunia: 23283 - phpBB privmsg.php Cross-Site Request Forgery and Cross-Site Scripting, Less Critical
OSVDB: 31859 - phpBB privmsg.php cross-site scripting
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍
Entry
Created: 03/12/2015 22:21Updated: 07/13/2019 10:51
Changes: 03/12/2015 22:21 (70), 07/13/2019 10:51 (8)
Complete: 🔍
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