MyBB/MyBB Merge System up to 1.6.17/1.8.5 Old Upgrade Files cross site scripting
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.9 | $0-$5k | 0.00 |
A vulnerability was found in MyBB and MyBB Merge System up to 1.6.17/1.8.5 (Content Management System). It has been rated as problematic. Affected by this issue is some unknown processing of the component Old Upgrade Files Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. CVE summarizes:
Cross-site scripting (XSS) vulnerability in MyBB (aka MyBulletinBoard) before 1.6.18 and 1.8.x before 1.8.6 and MyBB Merge System before 1.8.6 might allow remote attackers to inject arbitrary web script or HTML via vectors related to "old upgrade files."
The bug was discovered 11/10/2016. The weakness was released 01/31/2017 (Website). The advisory is available at openwall.com. This vulnerability is handled as CVE-2015-8976 since 11/17/2016. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.
The vulnerability was handled as a non-public zero-day exploit for at least 82 days. During that time the estimated underground price was around $0-$5k.
Upgrading to version 1.6.18 or 1.8.6 eliminates this vulnerability.
Entries connected to this vulnerability are available at 96323, 96324, 96325 and 96327.
Product
Type
Name
Version
- 1.6.0
- 1.6.1
- 1.6.2
- 1.6.3
- 1.6.4
- 1.6.5
- 1.6.6
- 1.6.7
- 1.6.8
- 1.6.9
- 1.6.10
- 1.6.11
- 1.6.12
- 1.6.13
- 1.6.14
- 1.6.15
- 1.6.16
- 1.6.17
- 1.8.0
- 1.8.1
- 1.8.2
- 1.8.3
- 1.8.4
- 1.8.5
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: 5.2VulDB Meta Temp Score: 5.1
VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 6.1
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
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-79 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: MyBB/MyBB Merge System 1.6.18/1.8.6
Timeline
11/10/2016 🔍11/17/2016 🔍
11/17/2016 🔍
01/31/2017 🔍
01/31/2017 🔍
02/01/2017 🔍
08/08/2020 🔍
Sources
Product: mybb.comAdvisory: openwall.com
Status: Not defined
Confirmation: 🔍
CVE: CVE-2015-8976 (🔍)
SecurityFocus: 94397 - MyBB Prior to 1.8.6 Multiple Security Vulnerabilities
OSVDB: - CVE-2015-8976 - MyBB - Multiple Products - Cross-Site Scripting Issue
See also: 🔍
Entry
Created: 02/01/2017 07:13Updated: 08/08/2020 11:54
Changes: 02/01/2017 07:13 (60), 08/08/2020 11:54 (6)
Complete: 🔍
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