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Vulnerability Details :

CVE-2024-23336

Summary
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
Published At-01 May, 2024 | 06:27
Updated At-01 Aug, 2024 | 22:59
Rejected At-
Credits

Incomplete disallowed remote addresses list in MyBB

MyBB is a free and open source forum software. The default list of disallowed remote hosts does not contain the `127.0.0.0/8` block, which may result in a Server-Side Request Forgery (SSRF) vulnerability. The Configuration File's _Disallowed Remote Addresses_ list (`$config['disallowed_remote_addresses']`) contains the address `127.0.0.1`, but does not include the complete block `127.0.0.0/8`. MyBB 1.8.38 resolves this issue in default installations. Administrators of installed boards should update the existing configuration (`inc/config.php`) to include all addresses blocked by default. Additionally, users are advised to verify that it includes any other IPv4 addresses resolving to the server and other internal resources. Users unable to upgrade may manually add 127.0.0.0/8' to their disallowed address list.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:GitHub_M
Assigner Org ID:a0819718-46f1-4df5-94e2-005712e83aaa
Published At:01 May, 2024 | 06:27
Updated At:01 Aug, 2024 | 22:59
Rejected At:
▼CVE Numbering Authority (CNA)
Incomplete disallowed remote addresses list in MyBB

MyBB is a free and open source forum software. The default list of disallowed remote hosts does not contain the `127.0.0.0/8` block, which may result in a Server-Side Request Forgery (SSRF) vulnerability. The Configuration File's _Disallowed Remote Addresses_ list (`$config['disallowed_remote_addresses']`) contains the address `127.0.0.1`, but does not include the complete block `127.0.0.0/8`. MyBB 1.8.38 resolves this issue in default installations. Administrators of installed boards should update the existing configuration (`inc/config.php`) to include all addresses blocked by default. Additionally, users are advised to verify that it includes any other IPv4 addresses resolving to the server and other internal resources. Users unable to upgrade may manually add 127.0.0.0/8' to their disallowed address list.

Affected Products
Vendor
MyBBmybb
Product
mybb
Versions
Affected
  • < 1.8.38
Problem Types
TypeCWE IDDescription
CWECWE-918CWE-918: Server-Side Request Forgery (SSRF)
CWECWE-184CWE-184: Incomplete List of Disallowed Inputs
Type: CWE
CWE ID: CWE-918
Description: CWE-918: Server-Side Request Forgery (SSRF)
Type: CWE
CWE ID: CWE-184
Description: CWE-184: Incomplete List of Disallowed Inputs
Metrics
VersionBase scoreBase severityVector
3.15.0MEDIUM
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Version: 3.1
Base score: 5.0
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/mybb/mybb/security/advisories/GHSA-qfrj-65mv-h75h
x_refsource_CONFIRM
https://github.com/mybb/mybb/commit/d6a96019025de9149014e06b1df252e6122e5630
x_refsource_MISC
https://docs.mybb.com/1.8/administration/configuration-file
x_refsource_MISC
https://mybb.com/versions/1.8.38
x_refsource_MISC
Hyperlink: https://github.com/mybb/mybb/security/advisories/GHSA-qfrj-65mv-h75h
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/mybb/mybb/commit/d6a96019025de9149014e06b1df252e6122e5630
Resource:
x_refsource_MISC
Hyperlink: https://docs.mybb.com/1.8/administration/configuration-file
Resource:
x_refsource_MISC
Hyperlink: https://mybb.com/versions/1.8.38
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
1. CISA ADP Vulnrichment
Affected Products
Vendor
MyBBmybb
Product
mybb
CPEs
  • cpe:2.3:a:mybb:mybb:*:*:*:*:*:*:*:*
Default Status
unknown
Versions
Affected
  • From 0 before 1.8.38 (custom)
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
2. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/mybb/mybb/security/advisories/GHSA-qfrj-65mv-h75h
x_refsource_CONFIRM
x_transferred
https://github.com/mybb/mybb/commit/d6a96019025de9149014e06b1df252e6122e5630
x_refsource_MISC
x_transferred
https://docs.mybb.com/1.8/administration/configuration-file
x_refsource_MISC
x_transferred
https://mybb.com/versions/1.8.38
x_refsource_MISC
x_transferred
Hyperlink: https://github.com/mybb/mybb/security/advisories/GHSA-qfrj-65mv-h75h
Resource:
x_refsource_CONFIRM
x_transferred
Hyperlink: https://github.com/mybb/mybb/commit/d6a96019025de9149014e06b1df252e6122e5630
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://docs.mybb.com/1.8/administration/configuration-file
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://mybb.com/versions/1.8.38
Resource:
x_refsource_MISC
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security-advisories@github.com
Published At:01 May, 2024 | 07:15
Updated At:30 Jun, 2025 | 15:10

MyBB is a free and open source forum software. The default list of disallowed remote hosts does not contain the `127.0.0.0/8` block, which may result in a Server-Side Request Forgery (SSRF) vulnerability. The Configuration File's _Disallowed Remote Addresses_ list (`$config['disallowed_remote_addresses']`) contains the address `127.0.0.1`, but does not include the complete block `127.0.0.0/8`. MyBB 1.8.38 resolves this issue in default installations. Administrators of installed boards should update the existing configuration (`inc/config.php`) to include all addresses blocked by default. Additionally, users are advised to verify that it includes any other IPv4 addresses resolving to the server and other internal resources. Users unable to upgrade may manually add 127.0.0.0/8' to their disallowed address list.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.15.0MEDIUM
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Type: Secondary
Version: 3.1
Base score: 5.0
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
CPE Matches
MyBB
mybb
>>mybb>>Versions before 1.8.38(exclusive)
cpe:2.3:a:mybb:mybb:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-184Secondarysecurity-advisories@github.com
CWE-918Secondarysecurity-advisories@github.com
CWE ID: CWE-184
Type: Secondary
Source: security-advisories@github.com
CWE ID: CWE-918
Type: Secondary
Source: security-advisories@github.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://docs.mybb.com/1.8/administration/configuration-filesecurity-advisories@github.com
Product
https://github.com/mybb/mybb/commit/d6a96019025de9149014e06b1df252e6122e5630security-advisories@github.com
Patch
https://github.com/mybb/mybb/security/advisories/GHSA-qfrj-65mv-h75hsecurity-advisories@github.com
Vendor Advisory
https://mybb.com/versions/1.8.38security-advisories@github.com
Product
Release Notes
https://docs.mybb.com/1.8/administration/configuration-fileaf854a3a-2127-422b-91ae-364da2661108
Product
https://github.com/mybb/mybb/commit/d6a96019025de9149014e06b1df252e6122e5630af854a3a-2127-422b-91ae-364da2661108
Patch
https://github.com/mybb/mybb/security/advisories/GHSA-qfrj-65mv-h75haf854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://mybb.com/versions/1.8.38af854a3a-2127-422b-91ae-364da2661108
Product
Release Notes
Hyperlink: https://docs.mybb.com/1.8/administration/configuration-file
Source: security-advisories@github.com
Resource:
Product
Hyperlink: https://github.com/mybb/mybb/commit/d6a96019025de9149014e06b1df252e6122e5630
Source: security-advisories@github.com
Resource:
Patch
Hyperlink: https://github.com/mybb/mybb/security/advisories/GHSA-qfrj-65mv-h75h
Source: security-advisories@github.com
Resource:
Vendor Advisory
Hyperlink: https://mybb.com/versions/1.8.38
Source: security-advisories@github.com
Resource:
Product
Release Notes
Hyperlink: https://docs.mybb.com/1.8/administration/configuration-file
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Product
Hyperlink: https://github.com/mybb/mybb/commit/d6a96019025de9149014e06b1df252e6122e5630
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Patch
Hyperlink: https://github.com/mybb/mybb/security/advisories/GHSA-qfrj-65mv-h75h
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Vendor Advisory
Hyperlink: https://mybb.com/versions/1.8.38
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Product
Release Notes

Change History

0
Information is not available yet

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