CVE-2025-8051 is a path traversal vulnerability classified under CWE-35, found in OpenText Flipper version 3.1.2. This vulnerability allows an attacker to manipulate file path inputs to access files outside the intended directory scope, specifically enabling absolute path traversal. Exploitation requires no privileges but does require user interaction, such as clicking a crafted link or submitting manipulated input. The vulnerability can lead to unauthorized disclosure of sensitive files hosted on the server, potentially exposing configuration files, credentials, or other sensitive data. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), user interaction required (UI:P), and low impact on confidentiality, integrity, and availability (VC:L, VI:L, VA:L). The vulnerability does not affect system confidentiality, integrity, or availability at a high level but can still lead to significant information disclosure risks. No patches or known exploits are currently reported, but the vulnerability is publicly disclosed and should be addressed promptly. The lack of authentication requirement increases the risk, especially in internet-facing deployments. The flaw stems from insufficient sanitization or validation of file path inputs, allowing traversal sequences to access arbitrary files on the server filesystem.

For European organizations, this vulnerability poses a moderate risk primarily to confidentiality due to potential unauthorized file access. Organizations using OpenText Flipper 3.1.2, especially in sectors handling sensitive or regulated data such as finance, healthcare, and government, could face data leakage risks. Attackers could retrieve configuration files, credentials, or other sensitive information that may facilitate further attacks or data breaches. The vulnerability could also impact integrity if attackers modify accessible files, though this is less likely given the described impact. Availability impact is low but cannot be ruled out if critical files are accessed or manipulated. Since exploitation requires user interaction, phishing or social engineering could be used to trigger the vulnerability. The risk is higher for internet-facing Flipper instances without additional access controls or network segmentation. The absence of known exploits in the wild reduces immediate threat but does not eliminate future exploitation risk. Compliance with GDPR and other data protection regulations may be impacted if sensitive personal data is exposed.

1. Upgrade OpenText Flipper to a version where this vulnerability is patched once available. Monitor vendor advisories for patches. 2. Implement strict input validation and sanitization on all file path parameters to prevent traversal sequences. 3. Restrict file system permissions for the Flipper application to limit accessible directories and files, minimizing exposure if exploited. 4. Deploy Web Application Firewalls (WAFs) with rules to detect and block path traversal attempts, including encoded traversal patterns. 5. Monitor logs for unusual file access patterns or errors indicating traversal attempts. 6. Educate users to recognize and avoid suspicious links or inputs that could trigger the vulnerability. 7. Segment and isolate Flipper servers from critical infrastructure and sensitive data repositories to reduce lateral movement risk. 8. Conduct regular security assessments and penetration testing focusing on path traversal and input validation weaknesses. 9. If patching is delayed, consider temporary mitigations such as disabling vulnerable features or restricting access to trusted networks only.