CVE-2025-6742
Published: 09 July 2025
Summary
CVE-2025-6742 is a high-severity Deserialization of Untrusted Data (CWE-502) vulnerability in Brainstormforce Sureforms. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 18.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
The SureForms Drag and Drop Form Builder plugin for WordPress is affected by a PHP Object Injection vulnerability in all versions through 1.7.3. The issue stems from unrestricted use of file_exists() inside the delete_entry_files() function, which permits an attacker to supply an arbitrary serialized object. The flaw is tracked as CWE-502 and carries a CVSS 3.1 score of 7.5.
Unauthenticated attackers can exploit the weakness over the network by submitting a crafted request that triggers object injection. Because the plugin itself contains no POP chain, successful exploitation requires the presence of a second vulnerable plugin or theme that supplies a usable chain; when such a chain exists, the attacker may be able to delete arbitrary files, read sensitive data, or execute code on the server.
A fix has been published in the WordPress plugin repository, visible in changeset 3319753, which restricts the path argument passed to file_exists(). Site administrators are advised to update to version 1.7.4 or later; the Wordfence advisory also recommends removing the plugin if it is not actively required.
EPSS remains flat at 0.0144 with no material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-20784
Vulnerability details
The SureForms – Drag and Drop Form Builder for WordPress plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.7.3 via the use of file_exists() in the delete_entry_files() function without restriction on the…
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path provided. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing supplies malicious serialized objects, detecting unsafe deserialization and supporting corrective actions.
Evaluation of untrusted data handling (deserialization testing) reveals unsafe processing, which the required remediation process addresses.
Untrusted serialized data can be deserialized and observed inside the chamber, blocking gadget-chain exploitation outside the sandbox.
Validates or rejects untrusted serialized data before deserialization occurs.
Identifies and blocks malicious code introduced through deserialization of untrusted data at system boundaries.
Integrity verification of serialized information can detect tampering before deserialization occurs.
Provenance of associated data allows detection of untrusted sources before deserialization or processing occurs.