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CVE Record

CVE-2010-4629: MyBB (aka MyBulletinBoard) before 1.4.12 does not properly restrict uid values for group join requests, whi...

MyBB (aka MyBulletinBoard) before 1.4.12 does not properly restrict uid values for group join requests, which allows remote attackers to cause a denial of service (resource consumption) by using guest access to submit join request forms for moderated groups, related to usercp.php and managegroup.php.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's Takemoderate

Analyst readout for executives and security teams

Plain-English summary

This issue affects old MyBB forum installations before 1.4.12. A guest could submit moderated group join requests in a way that consumes server resources, potentially disrupting forum availability. The bundle does not provide CVSS, confirmed exploitation, or detailed impact metrics.

Executive priority

Prioritize if legacy MyBB forums remain internet-facing. The main business risk is availability disruption, not data theft, based on the supplied sources. Treat as lower urgency if no MyBB before 1.4.12 exists.

Technical view

MyBB before 1.4.12 did not properly restrict uid values for group join requests. The issue is tied to usercp.php and managegroup.php, allowing remote guest users to trigger denial of service through moderated group join request forms.

Likely exposure

Exposure is most likely on internet-facing MyBB forums older than 1.4.12 with guest access and moderated groups enabled. Current installations or forums not using this feature are less likely exposed, but the source bundle lacks full configuration details.

Exploitation context

The described attack is remote and does not require an authenticated user account, only guest access to relevant forms. The bundle does not show CISA KEV listing or any cited evidence of active exploitation.

Researcher notes

The public bundle identifies the affected code areas and denial-of-service vector, but provides no CVSS, CWE, exploit confirmation, or detailed patch diff content. Validate against vendor records before asserting broader product impact.

Mitigation direction

  • Upgrade MyBB installations older than 1.4.12 following vendor guidance.
  • Review vendor release notes for the 1.4.12 security maintenance update.
  • Restrict guest access to moderated group join forms where feasible.
  • Monitor forum resource usage and join request activity for abnormal spikes.

Validation and detection

  • Inventory all MyBB deployments and confirm their exact versions.
  • Check whether any installation runs a version before 1.4.12.
  • Verify moderated group join request forms are not guest-abusable.
  • Review logs for unusual guest join request volume or resource exhaustion events.
Prepared
Confidence
medium
Sources
7

Public sources used

Based on public source material and reviewed before publication.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2010-4629 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
8Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.