CVE-2025-49283Network attack vector

Unauthorized admin action via missing nonce validation

Published Jun 6, 2025 · Updated Apr 28, 2026

Cross-site request forgery in Invisible Anti-Spam & CAPTCHA 4.1.1 and earlier allows remote attackers to trigger an unauthorized admin action. The affected handler omits or incorrectly performs WordPress nonce validation, but published sources do not identify the function or resulting state change. Exploitation requires an authenticated administrator to follow a crafted link or otherwise submit an attacker-controlled request.

CVSS severity4.3
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in Invisible Anti-Spam & CAPTCHA 4.1.1 and earlier allows remote attackers to trigger an unauthorized admin action. The affected handler omits or incorrectly performs WordPress nonce validation, but published sources do not identify the function or resulting state change. Exploitation requires an authenticated administrator to follow a crafted link or otherwise submit an attacker-controlled request.

The record

CVE
CVE-2025-49283
Published
Jun 6, 2025
Updated
Apr 28, 2026
Vendor
Matthias Nordwig
Product
Invisible Anti-Spam & CAPTCHA — reCAPTCHA Alternative for All Forms
Classifications
CWE-352, CAPEC-62, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 6, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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 <=4.1.1 changes=[{"at":"4.1.2","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Matthias Nordwig · Invisible Anti-Spam & CAPTCHA — reCAPTCHA Alternative for All Formsversion=0 <=4.1.1 changes=[{"at":"4.1.2","status":"unaffected"}]

Published CVSS scores

4.3PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
CAPEC-62Cross Site Request Forgery
T1204.001Malicious Link

Public exploit references

No public exploit references are available in this record.

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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