Moodle Login Page Captcha

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in Moodle and classified as problematic. Affected by this vulnerability is an unknown functionality of the component Login Page. The manipulation leads to Captcha. This vulnerability is documented as CVE-2024-34009. The attack can be initiated remotely. There is not any exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Moodle (the affected version unknown). This issue affects an unknown part of the component Login Page. The manipulation with an unknown input leads to a captcha vulnerability. Using CWE to declare the problem leads to CWE-804. The product uses a CAPTCHA challenge, but the challenge can be guessed or automatically recognized by a non-human actor. Impacted is confidentiality. The summary by CVE is:

Insufficient checks whether ReCAPTCHA was enabled made it possible to bypass the checks on the login page. This did not affect other pages where ReCAPTCHA is utilized.

It is possible to read the advisory at bugzilla.redhat.com. The identification of this vulnerability is CVE-2024-34009 since 04/29/2024. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 261496 (Linux Distros Unpatched Vulnerability : CVE-2024-34009), which helps to determine the existence of the flaw in a target environment.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.moodle.org.

The vulnerability is also documented in the vulnerability database at Tenable (261496). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.6

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Captcha
CWE: CWE-804 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 261496
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2024-34009

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.moodle.org

Timelineinfo

04/29/2024 🔍
05/21/2024 +22 days 🔍
05/21/2024 +0 days 🔍
09/06/2025 +473 days 🔍

Sourcesinfo

Product: moodle.org

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2024-34009 (🔍)
GCVE (CVE): GCVE-0-2024-34009
GCVE (VulDB): GCVE-100-265331

Entryinfo

Created: 05/21/2024 07:00
Updated: 09/06/2025 22:47
Changes: 05/21/2024 07:00 (51), 06/03/2024 16:59 (2), 09/06/2025 22:47 (3)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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