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CVE-2024-33996

moodle: broken access control when setting calendar event type

MEDIUM
6.2
CVSS Score
Published: May 31, 2024 at 07:29 PM UTC
Updated: June 17, 2026 at 07:32 AM UTC
1 product affected across 1 vendorMoodle

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Severity
MEDIUM6.2
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Incorrect validation of allowed event types in a calendar web service made it possible for some users to create events with types/audiences they did not have permission to publish to.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Moodle· Moodle
95%
v < 4.1.104.0 ≤ v ≤ 4.3.34.0.0 ≤ v ≤ 4.3.34.1 ≤ v ≤ 4.1.94.1.0 ≤ v ≤ 4.1.94.2 ≤ v ≤ 4.2.64.2.0 ≤ v ≤ 4.2.64.2.0 ≤ v < 4.2.74.3.0 ≤ v < 4.3.44.04.0.04.14.1.04.24.2.0
Affected range stops below 4.1.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.2.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.3.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://moodle.org/mod/forum/discuss.php?d=458384#p1840909

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.2MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-20NVD-CWE-noinfo

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