CVE-2026-23843 is a high-severity vulnerability affecting the teklifolustur_app, a web-based PHP application designed for creating, managing, and tracking client quotes. This vulnerability allows authenticated users to exploit an Insecure Direct Object Reference (IDOR) in the offer view functionality.
The vulnerability is due to missing authorization checks for the offer_id parameter, enabling users to access offers that do not belong to them. The issue was addressed in commit dd082a134a225b8dcd401b6224eead4fb183ea1c, which contains a patch.
With a CVSS score of 7.1, this vulnerability is classified as high severity. The attack vector is network-based with low complexity, requiring low privileges and no user interaction. The potential impact includes a high confidentiality loss and a low integrity impact.
As this vulnerability is currently in a deferred status, organizations should remain vigilant and prioritize patching immediately to prevent unauthorized access to sensitive data.
Vulnerability Details
The official description states that prior to the patch, an IDOR vulnerability exists within the offer view functionality of the teklifolustur_app. The issue stems from inadequate authorization checks for the offer_id parameter, allowing authenticated users to manipulate this parameter and access the offers of other users.
The vulnerability falls under CWE-639 and has a CVSS 3.1 score of 7.1, which translates to a high severity classification. The attack vector is network-based, indicating that exploitation can occur remotely. The requirements for exploitation are low, meaning attackers do not need extensive privileges or user interaction.
Technical Analysis
The root cause of the vulnerability is the absence of proper authorization checks for the offer_id parameter, leading to potential unauthorized access to sensitive client offers. The attack vector is network-based, which enables remote exploitation. The attack complexity is classified as low, making it feasible for attackers with limited abilities to exploit the vulnerability.
No user interaction is required to exploit the vulnerability, which poses a significant risk. Confidentiality impact is rated high due to the potential exposure of sensitive user data, while integrity impact is rated low, as the offers themselves are not modified by the exploitation.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2026-23843 is substantial, particularly for organizations utilizing the teklifolustur_app. The risk to organizations includes potential unauthorized access to client offers, which could lead to data breaches and reputational damage.
Given the high CVSS score and the nature of the vulnerability, organizations should address this issue in their priority patch cycle. The urgency is heightened by the potential for attackers to exploit this vulnerability in environments where sensitive client data is managed.
The vulnerability's potential blast radius is significant, allowing attackers to access multiple client offers if exploited. Organizations should ensure that appropriate remediation measures are undertaken promptly.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions of the teklifolustur_app prior to the patch in commit dd082a134a225b8dcd401b6224eead4fb183ea1c are affected.
Mitigation & Remediation
Organizations should prioritize applying the patch provided in commit dd082a134a225b8dcd401b6224eead4fb183ea1c to remediate this vulnerability.
If immediate patching is not possible, organizations should implement strict access controls and authorization checks for the offer_id parameter to mitigate the risk of unauthorized access.
Detection Guidance
Monitor logs for unusual access patterns, especially attempts to access offers that do not belong to the authenticated user.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2026-23843 highlights the need for robust authorization checks in web applications. This incident serves as a reminder for security teams to regularly audit their applications for IDOR vulnerabilities.
Organizations should consider reviewing their application security practices and implementing a comprehensive testing strategy, including IDOR vulnerability assessments to prevent similar issues in the future.
The patterns observed in this vulnerability underlines the importance of continuous security testing and proactive security measures to protect sensitive data.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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