CVE-2026-57739Network attack vector

Unauthenticated data extraction via blind SQL injection

Published Jul 13, 2026 · Updated Jul 13, 2026

Blind SQL injection in Acyba AcyMailing 10.11.0 and earlier allows remote attackers to extract sensitive database information over HTTP. Published sources state that an unspecified user-supplied parameter is insufficiently escaped before an existing SQL query is prepared, but they do not identify the endpoint or parameter. No authentication or user interaction is required, and the disclosed consequence is extraction of sensitive database information.

CVSS severity9.3
Critical
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Blind SQL injection in Acyba AcyMailing 10.11.0 and earlier allows remote attackers to extract sensitive database information over HTTP. Published sources state that an unspecified user-supplied parameter is insufficiently escaped before an existing SQL query is prepared, but they do not identify the endpoint or parameter. No authentication or user interaction is required, and the disclosed consequence is extraction of sensitive database information.

The record

CVE
CVE-2026-57739
Published
Jul 13, 2026
Updated
Jul 13, 2026
Vendor
AcyMailing Newsletter Team
Product
AcyMailing
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

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 <=10.11.0 changes=[{"at":"10.11.1","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

AcyMailing Newsletter Team · AcyMailingversion=0 <=10.11.0 changes=[{"at":"10.11.1","status":"unaffected"}]

Published CVSS scores

9.3PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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