VDB-142711 · CVE-2019-16993 · GCVE-0-2019-16993

phpBB up to 3.1.7 BBcode Page acp_bbcodes.php cross-site request forgery

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.
6.4	$0-$5k	0.00

Summaryinfo

A vulnerability identified as problematic has been detected in phpBB up to 3.1.7. This affects an unknown function of the file includes/acp/acp_bbcodes.php of the component BBcode Page. This manipulation causes cross-site request forgery. This vulnerability is handled as CVE-2019-16993. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in phpBB up to 3.1.7 (Forum Software). It has been declared as problematic. Affected by this vulnerability is some unknown functionality of the file includes/acp/acp_bbcodes.php of the component BBcode Page. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. The CWE definition for the vulnerability is CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. As an impact it is known to affect integrity. The summary by CVE is:

In phpBB before 3.1.7-PL1, includes/acp/acp_bbcodes.php has improper verification of a CSRF token on the BBCode page in the Administration Control Panel. An actual CSRF attack is possible if an attacker also manages to retrieve the session id of a reauthenticated administrator prior to targeting them.

The weakness was released 09/30/2019 (Website). It is possible to read the advisory at lists.debian.org. This vulnerability is known as CVE-2019-16993 since 09/30/2019. 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. Technical details of the vulnerability are known, but there is no available exploit.

By approaching the search of inurl:includes/acp/acp_bbcodes.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 3.1.7-PL1 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Forum Software

Name

phpBB

Version

License

open-source

Website

Product: https://www.phpbb.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

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 request forgery
CWE: CWE-352 / CWE-862 / CWE-863
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-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: phpBB 3.1.7-PL1
Patch: github.com

Timelineinfo

09/30/2019 🔍
09/30/2019 +0 days 🔍
10/01/2019 +1 days 🔍
12/29/2023 +1550 days 🔍

Sourcesinfo

Product: phpbb.com

Advisory: 18abef716ecf42a35416444f3f84f5459d573789
Status: Not defined

CVE: CVE-2019-16993 (🔍)
GCVE (CVE): GCVE-0-2019-16993
GCVE (VulDB): GCVE-100-142711

Entryinfo

Created: 10/01/2019 08:39
Updated: 12/29/2023 07:09
Changes: 10/01/2019 08:39 (56), 09/16/2020 16:22 (1), 12/29/2023 06:55 (5), 12/29/2023 07:09 (1)
Complete: 🔍
Cache ID: 216::103