CyberSecBulletin
CVE-2025-6691NVD status: Analyzed

SureForms – Drag and Drop Form Builder for…: Externally Controlled Reference to a Resource in Another Sphere

Published Updated By the CyberSecBulletin desk

CVE-2025-6691 is a high-severity externally controlled reference to a resource in another sphere vulnerability in SureForms – Drag and Drop Form Builder for WordPress from Brainstormforce, with a CVSS 3.1 base score of 8.1 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, but only if a user takes part, for example by opening a link or file. Affected SureForms – Drag and Drop Form Builder for WordPress versions: 0.0.13 and earlier; 1.0 through 1.0.6; 1.1 through 1.1.1, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 1.05% chance of exploitation within 30 days, higher than 65% of scored CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update Sureforms to 0.0.14 or 1.0.7 or 1.1.2 or 1.2.5, whichever matches your release line, or a later version.
  2. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
  3. Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.

Affected products and versions

VendorProductAffected versionsFixed in
BrainstormforceSureForms – Drag and Drop Form Builder for WordPress0.0.13 and earlier; 1.0 through 1.0.6; 1.1 through 1.1.1; 1.2 through 1.2.4; 1.3 through 1.3.1; 1.4 through 1.4.4; 1.5; 1.6 through 1.6.4; and 1 more rangesNot stated
BrainstormforceSureforms0.0.2 up to, but not including, 0.0.14; 1.0.0 up to, but not including, 1.0.7; 1.1.0 up to, but not including, 1.1.2; 1.2.0 up to, but not including, 1.2.5; 1.3.0 up to, but not including, 1.3.2; 1.4.0 up to, but not including, 1.4.5; 1.6.0 up to, but not including, 1.6.5; 1.7.0 up to, but not including, 1.7.4; and 1 more ranges0.0.14, 1.0.7, 1.1.2, 1.2.5, 1.3.2, 1.4.5

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
RequiredA user must take an action such as opening a file or link.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
NoneNo data is disclosed.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H. Scored by CNA (wordfence.com).

Official description

The SureForms – Drag and Drop Form Builder for WordPress plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the delete_entry_files() function in all versions up to, and including, 1.7.3. This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php).

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Externally Controlled Reference to a Resource in Another Sphere

The product uses an externally controlled name or reference that resolves to a resource that is outside of the intended control sphere.

More Externally Controlled Reference to a Resource in Another Sphere vulnerabilities (CWE-610)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in SureForms – Drag and Drop Form Builder for WordPress

All SureForms – Drag and Drop Form Builder for WordPress vulnerabilities

Recent Externally Controlled Reference to a Resource in Another Sphere vulnerabilities

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