VDB-113001 · CVE-2018-6844 · OpenVAS 830753

MyBB 1.8.14 Edit Forum Title/Description 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.
4.4$0-$5k0.00

Summaryinfo

A vulnerability was found in MyBB 1.8.14. It has been rated as problematic. This impacts an unknown function of the component Edit Forum. Performing a manipulation of the argument Title/Description results in cross site scripting. This vulnerability is identified as CVE-2018-6844. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in MyBB 1.8.14 (Content Management System). It has been classified as problematic. This affects an unknown function of the component Edit Forum. The manipulation of the argument Title/Description with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. The summary by CVE is:

MyBB 1.8.14 has XSS via the Title or Description field on the Edit Forum screen.

The bug was discovered 02/07/2018. The weakness was released 02/08/2018 (Website). The advisory is shared at websecnerd.blogspot.com. This vulnerability is uniquely identified as CVE-2018-6844 since 02/08/2018. It is possible to initiate the attack remotely. The successful exploitation requires a authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 1 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.

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

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

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

NVD Base Score: 5.4
NVD Vector: 🔍

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-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 830753
OpenVAS Name: MyBB 1.8.14 XSS Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/07/2018 🔍
02/08/2018 +1 days 🔍
02/08/2018 +0 days 🔍
02/08/2018 +0 days 🔍
02/08/2018 +0 days 🔍
02/03/2021 +1091 days 🔍

Sourcesinfo

Product: mybb.com

Advisory: websecnerd.blogspot.com
Status: Not defined

CVE: CVE-2018-6844 (🔍)
GCVE (CVE): GCVE-0-2018-6844
GCVE (VulDB): GCVE-100-113001

Entryinfo

Created: 02/08/2018 18:24
Updated: 02/03/2021 06:52
Changes: 02/08/2018 18:24 (46), 01/03/2020 06:44 (7), 02/03/2021 06:52 (12)
Complete: 🔍
Cache ID: 216::103

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

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