1. What is this vulnerability and why does it matter?

This vulnerability, identified as CVE-2024-43283, is categorized as an "Insertion of Sensitive Information Into Sent Data" flaw. It affects the Contest Gallery plugin/software developed by Wasiliy Strecker / ContestGallery developer. This type of vulnerability matters significantly because it can lead to the unauthorized disclosure of sensitive information, which might include personal data, configuration details, or other proprietary information. Such exposure can result in privacy breaches, compliance violations, and potentially aid attackers in further compromising the affected systems or users.

2. What are the CVSS score, severity level, and disclosure details?

The CVSS score for CVE-2024-43283 is 7.5. This score designates the vulnerability as having a High severity level. The vulnerability was publicly disclosed and published on August 26, 2024, at 16:07:06 UTC, and was last modified on April 28, 2026, at 16:10:11 UTC.

3. Which products, vendors, systems, and versions are affected?

• Vendors/Developers: Wasiliy Strecker / ContestGallery developer
• Products/Systems: Contest Gallery (specifically, the contest-gallery component)
• Affected Versions: All versions from n/a up to and including 23.1.2 are affected.

4. What is the technical root cause and attack vector?

The technical root cause of this vulnerability lies in the improper handling of sensitive information within the Contest Gallery software, leading to its inadvertent inclusion in data that is sent out from the system. This aligns with CWE-201 (Information Exposure Through Sent Data) and CWE-200 (Information Exposure). The specific attack vector involves an attacker gaining access to this "sent data" to retrieve the sensitive information. This could occur through various means, such as intercepting network traffic, accessing application logs, or exploiting other vulnerabilities that allow for the inspection of transmitted data.

5. How can this vulnerability be exploited?

This vulnerability can be exploited by an attacker who is able to intercept or gain access to data that is being sent by the affected Contest Gallery instance. The software improperly inserts sensitive information into this outgoing data. Therefore, an attacker would need to monitor network communications, analyze application responses, or access logs where this sensitive information might be inadvertently recorded or transmitted. The exact method of exploitation depends on the specific mechanism by which the sensitive data is "sent" (e.g., via HTTP responses, emails, external API calls, or log files).

6. What mitigation steps and patches are available?

The provided CVE data does not specify particular mitigation steps or direct links to patches. However, it is strongly recommended that users update their Contest Gallery installation to a version higher than 23.1.2, as this implies a patch would be available in subsequent versions. Users should consult the official Contest Gallery developer's website or their update channels for the latest security fixes and updated versions.

7. How can vulnerable systems be detected?

Vulnerable systems can be detected by identifying the version of the Contest Gallery plugin/software installed. Any instance of Contest Gallery with a version number equal to or less than 23.1.2 is considered vulnerable to CVE-2024-43283. Administrators should check their installed plugin versions through their content management system (e.g., WordPress plugin list) or by inspecting the plugin's file system for version information.

8. What are the indicators of compromise (IOCs)?

The provided CVE data does not specify any Indicators of Compromise (IOCs) for this particular vulnerability. Detection of compromise would likely involve monitoring for unusual outgoing data containing sensitive information, unauthorized access attempts, or anomalies in system behavior following the exposure of sensitive data.

9. Which threat actors are known to exploit this vulnerability?

The provided CVE data does not mention any specific threat actors known to exploit CVE-2024-43283. However, vulnerabilities that expose sensitive information are generally attractive to various types of attackers, including financially motivated cybercriminals, state-sponsored actors, and hacktivists.

10. What public intelligence references and advisories exist?

The primary public intelligence reference for this vulnerability is the CVE entry itself: CVE-2024-43283. For additional advisories or more detailed technical information, users should refer to the official security advisories or changelogs published by Wasiliy Strecker / ContestGallery developer, and potentially cybersecurity news outlets or vulnerability databases that track this CVE.

11. What is the risk assessment and urgency level?

The risk assessment for CVE-2024-43283 is High, based on its CVSS score of 7.5. The urgency level for addressing this vulnerability is also High. The potential for sensitive information exposure can lead to significant consequences, including data breaches, reputational damage, and regulatory penalties. Organizations using affected versions of Contest Gallery should prioritize updating their systems to a patched version immediately to mitigate the risk of exploitation.