Ninja Forms - Excel Export <= 3.3.6 - Missing Authorization to Authenticated (Subscriber+) XLS Write via Path Traversal

2026-07-16 13:44

Chu Thao Mai

Strategic Overview

Status

Patched in 3.3.7

Affected PluginNinja Forms - Excel Export

Affected Version<= 3.3.6

CVSS4.3Medium

CVECVE-2026-15160

View all Ninja Forms - Excel Export vulnerabilities

Vulnerability Overview

The Ninja Forms - Excel Export plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 3.3.6 via the 'spreadsheet_export_tmp_name' parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to write .xls/.xlsx files to arbitrary locations on the server, which can be used to stage further attacks.

Technical Analysis

REMEDIATION: Update to version 3.3.7, or a newer patched version --- IDENTIFIER: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

External References

https://www.cve.org/CVERecord?id=CVE-2026-15160 https://www.wordfence.com/threat-intel/vulnerabilities/id/24fb24cc-c29f-4d2d-87ba-5d211386e7dd

CVSS Vector

4.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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