CVE-2026-24635 is classified as a high-severity vulnerability with a CVSS score of 7.5. This vulnerability allows for PHP Local File Inclusion (LFI) due to improper control of filenames in the Include/Require statement within the DevsBlink EduBlink Core application. The issue affects all versions of EduBlink Core up to and including 2.0.7. Given the nature of this vulnerability, organizations using this software should take immediate action to resolve this issue.
Risk to organizations includes the potential for unauthorized access to sensitive files on the server. Attackers may leverage this vulnerability to gain control of the server and manipulate the application environment. The urgency for defenders is high, as the window for exploitation can be narrow, and effective mitigation is crucial.
The vulnerability was published on January 23, 2026, and the last modification occurred on April 15, 2026. As of now, it is classified under the CWE-98 category, indicating that it involves improper control over file inclusion mechanisms. Organizations should prioritize patching immediately to ensure the security of their systems.
With this vulnerability being marked as deferred, it is essential to remain vigilant. Continuous monitoring and a proactive approach to security can help mitigate risks associated with potential exploitation.
Vulnerability Details
This vulnerability allows for unauthorized file access through improper filename control in PHP. Specifically, it affects the DevsBlink EduBlink Core, which is utilized in various educational applications. The CVSS score of 7.5 indicates a high severity, with significant impacts on confidentiality, integrity, and availability.
The vulnerability is characterized by the following CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H. This indicates that the attack vector is network-based, requires low privileges, and does not necessitate user interaction, making it a significant concern for organizations.
Organizations using versions of EduBlink Core prior to the patch (<= 2.0.7) should take immediate steps to upgrade to a secure version.
Technical Analysis
The root cause of CVE-2026-24635 lies in the improper validation of filenames within PHP's Include/Require statements. This allows attackers to manipulate file paths, potentially leading to local file inclusion and unauthorized access to sensitive data.
To exploit this vulnerability, an attacker can send a crafted request to the affected application, leading to the execution of arbitrary PHP files. The attack complexity is categorized as high, requiring an attacker to have knowledge of the application structure and the ability to craft specific requests.
No user interaction is required for exploitation, making this vulnerability particularly dangerous. If successful, it can lead to significant impacts, including data leakage and service disruption.
Risk & Impact Analysis
The potential impact of CVE-2026-24635 is significant, as it allows attackers to gain unauthorized access to sensitive files. This can lead to data breaches, loss of sensitive information, and damage to organizational reputation.
Given the high attack vector and the complexity involved, organizations should prioritize this vulnerability in their patch management processes. The urgency is underscored by the CVSS score of 7.5, indicating a high risk to affected systems.
With an EPSS score of 0.0017, this vulnerability is currently in a low percentile risk category, but organizations should not become complacent. Proactive monitoring and security measures should be implemented to mitigate potential risks.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
This vulnerability affects all versions of EduBlink Core up to and including version 2.0.7. Organizations using these versions should take immediate action to apply the necessary patches or upgrades.
Mitigation & Remediation
To mitigate the risks associated with CVE-2026-24635, organizations should upgrade to the latest version of EduBlink Core. If an upgrade is not feasible, organizations should implement workarounds to restrict filename inputs and harden configurations to minimize exposure.
Monitoring for unauthorized access attempts and employing network controls can also help detect and prevent potential exploitation. For further guidance on security testing, organizations should consider conducting a penetration testing to validate the effectiveness of implemented security measures.
Detection Guidance
Organizations should monitor logs for indicators of unauthorized file access, including unusual file read operations and attempts to access sensitive directories. Behavioral anomalies in application performance or unexpected error messages can also be indicative of exploitation attempts.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2026-24635 lies in its representation of common vulnerabilities associated with improper file handling in PHP applications. This incident serves as a reminder for security teams to prioritize secure coding practices and regularly audit their applications for vulnerabilities.
As threats evolve, understanding the patterns of vulnerabilities can help in anticipating and mitigating future risks. Organizations are encouraged to develop a robust vulnerability management program and invest in proactive security measures to safeguard their environments.
For further insights on application security, organizations can refer to our comprehensive penetration testing methodology and stay updated with the latest trends in application security.
Understanding and addressing vulnerabilities such as CVE-2026-24635 is crucial for maintaining a secure environment, especially as organizations increasingly rely on web applications for critical operations.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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