CVE-2026-111493 in MatchPoint
Summary
by MITRE • 11/05/2026
Lack of authentication and authorization in the Images.ashx endpoint in MatchPoint, which allows profile photos to be downloaded using predictable identifiers. An unauthenticated remote attacker could enumerate these identifiers and collect users' photos. Linking these photos to identities may be facilitated by other vulnerabilities in the platform.
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Analysis
by VulDB Data Team • 11/05/2026
The vulnerability identified within the Images.ashx endpoint of MatchPoint represents a critical failure in access control mechanisms, specifically categorized under CWE-287 Improper Authentication and CWE-359 Exposed Private Personal Information. This flaw stems from an architectural design that relies on predictable identifiers for user profile photos rather than implementing robust session-based or token-driven authorization checks. In secure systems, sensitive assets such as personal images should be protected by verifying the requester's identity and permissions before serving content. However, in this instance, the endpoint accepts requests based solely on a sequential or easily guessable identifier associated with each user account. This design choice effectively bypasses any intended authentication barriers, allowing anyone with network access to retrieve these files without providing valid credentials.
From an operational perspective, this lack of authorization enables unauthenticated remote attackers to perform systematic enumeration attacks. By iterating through the range of possible identifiers, typically starting from one and incrementing sequentially or following a known pattern, an attacker can download profile photos for thousands of users in a short period. This process is automated and requires minimal technical sophistication, making it accessible even to low-skilled threat actors. The ability to collect these images at scale transforms what might seem like a minor privacy issue into a significant data breach event. The harvested data includes personal visual identifiers that are often linked directly to real-world identities, thereby compromising the confidentiality of user information protected under various privacy regulations and organizational security policies.
The impact extends beyond simple image theft due to the potential for correlation with other vulnerabilities within the MatchPoint platform. Profile photos serve as strong biometric or contextual indicators that can be used to link anonymous online accounts to specific individuals in social media, professional networks, or public records. When combined with other data leaks such as email addresses, usernames, or job titles which may also be exposed through separate flaws, the aggregated information creates a comprehensive profile of each victim. This enrichment facilitates targeted phishing campaigns, identity theft, and social engineering attacks where attackers leverage personal knowledge to gain trust or extract sensitive financial or corporate secrets from employees. The cumulative effect significantly increases the risk landscape for both individual users and the organizations employing MatchPoint as part of their collaboration infrastructure.
Mitigation strategies must address both immediate remediation steps and long-term architectural improvements. Immediately, administrators should restrict access to the Images.ashx endpoint by implementing IP whitelisting if possible or ensuring that all requests require valid authentication tokens derived from a secure session management system. The application logic must be updated to verify that the requesting user has explicit permission to view the specific resource being requested, rather than relying on predictable URLs. Furthermore, replacing sequential identifiers with cryptographically random unique identifiers such as UUIDs can mitigate enumeration attacks by making it computationally infeasible for attackers to guess valid IDs. Regular security audits and penetration testing should be conducted to identify similar patterns of insecure direct object references across other endpoints within the platform. Aligning these fixes with OWASP Top 10 guidelines, particularly those concerning Broken Access Control, will ensure a more resilient defense posture against exploitation attempts.