CVE-2026-15913 Vulnerability Analysis & Exploit Details

CVE-2026-15913
Vulnerability Scoring

7.7
/10
Very High Risk

Highly exploitable, CVE-2026-15913 poses a critical security risk that could lead to severe breaches.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: Low
    Some privileges are necessary to exploit the vulnerability.
  • Scope: Changed
    Successful exploitation can impact components beyond the vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2026-15913 Details

Status: Deferred

Last updated: 🕞 10 Sep 2026, 15:53 UTC
Originally published on: 🕙 09 Sep 2026, 22:17 UTC

CVSS Release: version 3

CVSS3 Source

df4dee71-de3a-4139-9588-11b62fe6c0ff

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CVE-2026-15913 Vulnerability Summary

CVE-2026-15913: In versions prior to 7.10.2 a path traversal vulnerability in the /attachRemoteFiles endpoint of Fortra's GoAnywhere MFT allows Web Users with both Secure Folders and Secure Mail permissions to escape their sandboxed home directory, achieving arbitrary file read.

Assessing the Risk of CVE-2026-15913

Access Complexity Graph

The exploitability of CVE-2026-15913 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2026-15913

CVE-2026-15913 presents an accessible attack vector with minimal effort required. Restricting access controls and implementing security updates are critical to reducing exploitation risks.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2026-15913, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2026-15913, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2026-15913 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: None
    CVE-2026-15913 poses no threat to data integrity.
  • Availability: None
    CVE-2026-15913 does not impact system availability.

CVE-2026-15913 References

External References

CWE Common Weakness Enumeration

CWE-23

CAPEC Common Attack Pattern Enumeration and Classification

  • Relative Path Traversal CAPEC-139 An attacker exploits a weakness in input validation on the target by supplying a specially constructed path utilizing dot and slash characters for the purpose of obtaining access to arbitrary files or resources. An attacker modifies a known path on the target in order to reach material that is not available through intended channels. These attacks normally involve adding additional path separators (/ or \) and/or dots (.), or encodings thereof, in various combinations in order to reach parent directories or entirely separate trees of the target's directory structure.
  • Manipulating Web Input to File System Calls CAPEC-76 An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.

Protect Your Infrastructure against CVE-2026-15913: Combat Critical CVE Threats

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