CVE-2025-3776Public exploitNetwork attack vector

Unauthenticated code execution via unrestricted callable dispatch

Published Apr 24, 2025 · Updated Apr 8, 2026

Code injection in cajka Verification SMS with TargetSMS 1.5 and earlier allows remote attackers to execute callable PHP functions. The unauthenticated targetvr_ajax_handler in inc/ajax.php accepts a caller-controlled function choice and dispatches it without restricting the callable type. Any network client that can reach the WordPress AJAX endpoint can invoke available PHP functions, exposing site data or changing and interrupting server behavior.

CVSS severity8.3
High
EPSS probability0.86%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in cajka Verification SMS with TargetSMS 1.5 and earlier allows remote attackers to execute callable PHP functions. The unauthenticated targetvr_ajax_handler in inc/ajax.php accepts a caller-controlled function choice and dispatches it without restricting the callable type. Any network client that can reach the WordPress AJAX endpoint can invoke available PHP functions, exposing site data or changing and interrupting server behavior.

The record

CVE
CVE-2025-3776
Published
Apr 24, 2025
Updated
Apr 8, 2026
Vendor
cajka
Product
Verification SMS with TargetSMS
Classifications
CWE-94, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

cajka · Verification SMS with TargetSMSversion=0 <=1.5

Published CVSS scores

8.3WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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