CVE-2025-8264Known exploitationPublic exploitNetwork attack vector

Database compromise via interpolated authentication username

Published Jul 29, 2025 · Updated Aug 13, 2026

SQL injection in the Z-Push IMAP backend before 2.7.6 allows remote attackers to alter linked database data through Basic Authentication. The getIdentityFromSql function substitutes the supplied username and domain directly into IMAP_FROM_SQL_QUERY before PDO prepares and executes the resulting SQL. Exposure requires the IMAP backend with SQL-based sender lookup configured; a crafted username can read, modify, or delete linked-database data.

CVSS severity9.0
Critical
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in the Z-Push IMAP backend before 2.7.6 allows remote attackers to alter linked database data through Basic Authentication. The getIdentityFromSql function substitutes the supplied username and domain directly into IMAP_FROM_SQL_QUERY before PDO prepares and executes the resulting SQL. Exposure requires the IMAP backend with SQL-based sender lookup configured; a crafted username can read, modify, or delete linked-database data.

The record

CVE
CVE-2025-8264
Published
Jul 29, 2025
Updated
Aug 13, 2026
Vendor
Z-Push
Product
Z-Push
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 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 <2.7.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Z-Push · Z-Pushversion=0 <2.7.6

Published CVSS scores

9.0SnykCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
7.9SnykCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

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

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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