MC4WP: Mailchimp for WordPress < 4.15.0 - Unauthenticated Subscription Audience Override
CVSS score
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EPSS probability
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Risk score
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Published
5 h ago
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Impact on My Inventory
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Vulnerability description
DayBreach AI Explanation
Verified against sourcesSources read
2
Source agreement
Tam uyum
Evidence confidence
%63
Short explanation
In MC4WP: Mailchimp for WordPress versions prior to 4.15.0, a lack of audience validation allows unauthenticated visitors to subscribe arbitrary email addresses to any other audience in the site's connected Mailchimp account [S0].
Unauthenticated attackers can bypass the target audience configured by the site owner and add unauthorized email subscriptions to other audiences within their connected Mailchimp accounts [S0].
What should be done?
- Follow vendor advisories as the patch status could not be verified in official sources [S0].
Chain of evidence and sources
MC4WP: Mailchimp for WordPress eklentisinin 4.15.0 öncesi sürümleri etkilenmektedir [S0].
Zafiyet, kimliği doğrulanmamış ziyaretçilerin bağlı Mailchimp hesaplarında kitle geçersiz kılma işlemlerine izin vermektedir [S0].
Show the technical text from the sources
The MC4WP: Mailchimp for WordPress plugin before 4.15.0 does not validate that the Mailchimp audience a sign-up form or bundled integration subscribes a visitor to matches the audience configured by the site owner, allowing unauthenticated visitors to subscribe arbitrary email addresses to any other audience in the site's connected Mailchimp account.
This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-118167 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | Unknown | MC4WP: Mailchimp for WordPress | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| The sources have not yet published a verified CVSS metric. | ||||
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-118167 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-118167 weaknesses.
Official Sources and Advisories
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