CVE-2026-45120
Last modified
CVE-2026-45120 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. MyBB is free and open source forum software. Prior to 1.8.40, the calendar module does not verify private event status consistently, allowing users with viewing and moderation permissions to access and moderate private events. EPSS estimates a 0.22% chance of exploitation in the next 30 days.
Description
MyBB is free and open source forum software. Prior to 1.8.40, the calendar module does not verify private event status consistently, allowing users with viewing and moderation permissions to access and moderate private events. The private-event check used by get_events() in inc/functions_calendar.php and the event action is missing from the remaining calendar.php actions, despite the limited-access behavior described in inc/languages/english/calendar.lang.php. This issue is fixed in version 1.8.40.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| mybb | mybb | < 1.8.40 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
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