CVE-2025-64515

MEDIUM EPSS 13.6%
Published Nov 18, 20257mo ago · Modified Jun 17, 20262w ago
4.3 CVSS 3.1
Medium
Find Similar
Published Nov 18, 2025 7mo ago
Last Modified Jun 17, 2026 2w ago

Description

Open Forms allows users create and publish smart forms. Prior to versions 3.2.7 and 3.3.3, forms where the prefill data fields are dynamically set to readonly/disabled can be modified by malicious users deliberately trying to modify data they're not supposed to. For regular users, the form fields are marked as readonly and cannot be modified through the user interface. This issue has been patched in versions 3.2.7 and 3.3.3.

CVSS Details

Base Score
4.3
Exploitability
2.8
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
13.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-20 Improper Input Validation Validation

Affected Products 2

VendorProductVersionRange
maykinmediaopen_forms* <3.2.7
maykinmediaopen_forms*≥3.3.0  –  <3.3.3

References 3

  • github.com https://github.com/open-formulieren/open-forms/blob/bcf2dc54c695fb7c8c58712627d82c4b766248b6/CHANGELOG.rst#327-2025-11-18
    Release Notes
  • github.com https://github.com/open-formulieren/open-forms/blob/bcf2dc54c695fb7c8c58712627d82c4b766248b6/CHANGELOG.rst#333-2025-11-18
    Release Notes
  • github.com https://github.com/open-formulieren/open-forms/security/advisories/GHSA-cp63-63mq-5wvf
    PatchVendor Advisory

Remediation

  • github.com https://github.com/open-formulieren/open-forms/security/advisories/GHSA-cp63-63mq-5wvf
    PatchVendor Advisory