CVE-2024-48899VulnerabilityPublished 3 Jun 2025

CVE-2024-48899: moodle · Improper Access Control

Affects moodleSource CVE Database V5

Not known to be exploited · CVSS 4.3 Medium.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score

4.3Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.3% chance of exploitation in 30 days – higher than 23% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 3 Jun 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
Packagistmoodle/moodle`pkg:composer/moodle/moodle`Other threats	Affected =4.4.0	Fixed in–

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AI-suggested

To mitigate CVE-2024-48899, organizations should first apply any patches or updates released by Moodle addressing this vulnerability. If patches are not yet available, administrators should implement additional access control checks at the application layer to verify user enrollment or authorization before allowing access to course badge lists. Reviewing and tightening role permissions to ensure users cannot access data beyond their scope is critical. Monitoring access logs for unusual badge list retrieval patterns can help detect exploitation attempts. Additionally, educating users about the importance of safeguarding their credentials reduces the risk of privilege abuse. Organizations should also consider isolating Moodle instances and restricting network access to trusted users. Finally, regularly auditing Moodle configurations and permissions can prevent similar access control issues from arising.

Description

A vulnerability was found in Moodle. Additional checks are required to ensure users can only fetch the list of course badges for courses that they are intended to have access to.

Impact

The primary impact of CVE-2024-48899 is unauthorized disclosure of course badge information, which may reveal details about course participation, achievements, or structure that should remain confidential. While this does not directly compromise system integrity or availability, it can lead to privacy violations and potentially aid attackers in reconnaissance activities to map out course content or user engagement. For educational institutions and organizations relying on Moodle, this could undermine trust and violate data protection policies, especially in regions with strict privacy regulations. The vulnerability requires some user privileges, so it does not allow anonymous attackers to exploit it, limiting the scope somewhat. However, given Moodle's widespread use globally, the potential exposure is significant. Attackers could leverage this information to target specific users or courses for further attacks or social engineering. Although no active exploits are known, the low complexity and remote nature of the vulnerability make it a credible risk that should be addressed promptly.

References

bugzilla.redhat.com/show_bug.cgi?id=2318819 (opens in a new tab)

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 26 Feb 2026, 00:20 UTC

Technical details

References

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