CVE-2021-38143

MEDIUM
Published Aug 31, 20214y ago · Modified Jun 17, 20262w ago
6.1 CVSS 3.1
Medium
Find Similar
Published Aug 31, 2021 4y ago
Last Modified Jun 17, 2026 2w ago

Description

An issue was discovered in Form Tools through 3.0.20. When an administrator creates a customer account, it is possible for the customer to log in and proceed with a change of name and last name. However, these fields are vulnerable to XSS payload insertion, being triggered in the admin panel when the admin tries to see the client list. This type of XSS (stored) can lead to the extraction of the PHPSESSID cookie belonging to the admin.

CVSS Details

Base Score
6.1
Exploitability
2.8
Impact
2.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 1

VendorProductVersionRange
formtoolscore* ≤3.0.20

References 4

  • bernardofsr.github.io https://bernardofsr.github.io/blog/2021/form-tools/
    ExploitThird Party Advisory
  • github.com https://github.com/bernardofsr/CVEs-With-PoC/blob/main/PoCs/Form%20Tools/README.md
    ExploitThird Party Advisory
  • github.com https://github.com/formtools/core
    ProductThird Party Advisory
  • formtools.org https://www.formtools.org/
    ProductVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.