Formidable Charts <= 2.0.1 - Unauthenticated Arbitrary File Read via 'frm_graph' Parameter
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.
Summary
The Formidable Charts plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 2.0.1 via the 'frm_graph' parameter. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information. Successful exploitation requires Formidable Forms Lite, Formidable Forms Pro, and Formidable Charts to be active and requires the wp-content/uploads/frm-charts/ directory to exist, normally after an image-format chart is rendered.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| strategy11team | Formidable Charts | up to 2.0.1 | — | No fix listed | CNA |
- Formidable Charts Vendorstrategy11team Affected up to 2.0.1 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-15990
- 2026-10-03 Alias added: GHSA-83fw-wqq3-pqp2
References
More strategy11team vulnerabilities
- TI-2022-03006 AWP Classifieds Plugin < 4.3 - Unauthenticated SQLi CVSS 3.1CRITICAL 9.8
- TI-2023-02696 Formidable Forms < 6.3.1 - Subscriber+ Remote Code Execution CVSS 3.1HIGH 8.8
- TI-2023-01329 Formidable Forms < 6.2 - Unauthenticated PHP Object Injection CVSS 3.1HIGH 7.5
- TI-2023-00774 Formidable Forms < 6.1 - IP Spoofing CVSS 3.1MEDIUM 6.5
- TI-2024-09065 Formidable Forms < 6.14.1 - Admin+ Stored XSS CVSS 3.1MEDIUM 4.8
- TI-2024-04133 SQL injection in strategy11team Business Directory Plugin – Easy Listing Directories for… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-15990 · CVE Program
- CVE-2026-15990 · NVD
- FIRST EPSS
- GHSA-83fw-wqq3-pqp2 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences