CVE-2026-57740Network attack vector

Authenticated data modification and service interruption

Published Jul 13, 2026 · Updated Jul 13, 2026

Missing authorization in AcyMailing SMTP Newsletter 10.11.1 and earlier allows remote authenticated users to alter data and interrupt service. Patchstack has not published the affected request handler or the authorization operation omitted while processing untrusted requests. Low-privileged WordPress access is required, no additional user action is needed, and the exact modified data and service-failure mode are undisclosed.

CVSS severity7.1
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in AcyMailing SMTP Newsletter 10.11.1 and earlier allows remote authenticated users to alter data and interrupt service. Patchstack has not published the affected request handler or the authorization operation omitted while processing untrusted requests. Low-privileged WordPress access is required, no additional user action is needed, and the exact modified data and service-failure mode are undisclosed.

The record

CVE
CVE-2026-57740
Published
Jul 13, 2026
Updated
Jul 13, 2026
Vendor
AcyMailing Newsletter Team
Product
AcyMailing
Classifications
CWE-862, CAPEC-180
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 13, 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 <=10.11.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

AcyMailing Newsletter Team · AcyMailingversion=0 <=10.11.1

Published CVSS scores

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
CAPEC-180Exploiting Incorrectly Configured Access Control Security Levels

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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