#VU107920 Code Injection in Verification SMS with TargetSMS - CVE-2025-3776

Vulnerability identifier: #VU107920

Vulnerability risk: High

CVSSv4.0: 8.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2025-3776

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Verification SMS with TargetSMS
Web applications / Modules and components for CMS

Vendor: Дробина Лариса

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation in the "targetvr_ajax_handler" function. A remote attacker can execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Verification SMS with TargetSMS: 1.5

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External links
https://plugins.trac.wordpress.org/browser/verification-sms-targetsms/trunk/inc/ajax.php#L7
https://plugins.trac.wordpress.org/browser/verification-sms-targetsms/trunk/inc/ajax.php#L9
https://www.wordfence.com/threat-intel/vulnerabilities/id/ed08d248-7467-4a3b-91a2-4286d91b9c50?source=cve

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.