CVE-2026-15990Network attack vector

Unauthenticated file read via path traversal

Published Aug 26, 2026 · Updated Aug 26, 2026

Directory traversal in Strategy11 Formidable Charts 2.0.1 and earlier allows remote attackers to read arbitrary server files via 'frm_graph'. The parameter is used to resolve a graph-image path without confining the resolved pathname to the chart upload directory. Exploitation requires Formidable Forms Lite, Formidable Forms Pro, and Formidable Charts to be active and the frm-charts upload directory to exist.

CVSS severity7.5
High
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Directory traversal in Strategy11 Formidable Charts 2.0.1 and earlier allows remote attackers to read arbitrary server files via 'frm_graph'. The parameter is used to resolve a graph-image path without confining the resolved pathname to the chart upload directory. Exploitation requires Formidable Forms Lite, Formidable Forms Pro, and Formidable Charts to be active and the frm-charts upload directory to exist.

The record

CVE
CVE-2026-15990
Published
Aug 26, 2026
Updated
Aug 26, 2026
Vendor
Business Directory Team
Product
Formidable Charts
Classifications
CWE-22, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Business Directory Team · Formidable Chartsversion=0 <=2.0.1

Published CVSS scores

7.5WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo