Why this deserves its current priority

CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Affected scope and exposure questions

The current feed maps AcyMailing Newsletter Team/AcyMailing SMTP Newsletter (generic). Check affected ranges and fixed versions before updating.

Recommended response

1. 1Check inventory. Check lockfiles and deployed manifests for AcyMailing Newsletter Team/AcyMailing SMTP Newsletter.
2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

1. Published upstream

   Aug 13, 2026

   Evidence: source:cvelist:source_dates:source-dates:record

2. Source modified

   Aug 14, 2026

   Evidence: source:cvelist:source_dates:source-dates:record

3. First seen by HOL

   Aug 13, 2026

Sources and claim methodology

• Source referencepatchstack.com

Related CVEs

• ECS < 4.3.8 - Contributor+ Stored XSS via Dynamic Repeater BindingsAlso CWE-79
• ECS < 4.3.8 - Unauthenticated Private Content Disclosure via ecsloadSame generic ecosystem
• Wholesale Market <= 2.2.2 - Authenticated (Subscriber+) Privilege Escalation via 'role_required' ParameterSame generic ecosystem
• Real Estate Manager Pro <= 12.8.6 - Authenticated (Subscriber+) Privilege Escalation via 'user_has_cap' Filter ID CollisionSame generic ecosystem
• User Profile Builder <= 3.16.4 - Unauthenticated Authentication Bypass via Type Confusion to Administrator Account Takeover via 'username' ParameterSame generic ecosystem
• TrueBooker <= 1.2.6 - Unauthenticated Account Takeover via Insecure Direct Object Reference in 'truebooker_wp_user_id' ParameterSame generic ecosystem

Why this deserves its current priority

CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Affected scope and exposure questions

The current feed maps AcyMailing Newsletter Team/AcyMailing SMTP Newsletter (generic). Check affected ranges and fixed versions before updating.

Recommended response

1. 1Check inventory. Check lockfiles and deployed manifests for AcyMailing Newsletter Team/AcyMailing SMTP Newsletter.
2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

1. Published upstream

   Aug 13, 2026

   Evidence: source:cvelist:source_dates:source-dates:record

2. Source modified

   Aug 14, 2026

   Evidence: source:cvelist:source_dates:source-dates:record

3. First seen by HOL

   Aug 13, 2026

Sources and claim methodology

• Source referencepatchstack.com

Related CVEs

• ECS < 4.3.8 - Contributor+ Stored XSS via Dynamic Repeater BindingsAlso CWE-79
• ECS < 4.3.8 - Unauthenticated Private Content Disclosure via ecsloadSame generic ecosystem
• Wholesale Market <= 2.2.2 - Authenticated (Subscriber+) Privilege Escalation via 'role_required' ParameterSame generic ecosystem
• Real Estate Manager Pro <= 12.8.6 - Authenticated (Subscriber+) Privilege Escalation via 'user_has_cap' Filter ID CollisionSame generic ecosystem
• User Profile Builder <= 3.16.4 - Unauthenticated Authentication Bypass via Type Confusion to Administrator Account Takeover via 'username' ParameterSame generic ecosystem
• TrueBooker <= 1.2.6 - Unauthenticated Account Takeover via Insecure Direct Object Reference in 'truebooker_wp_user_id' ParameterSame generic ecosystem