CVE-2026-56706Public exploitNetwork attack vector

CSRF token forgery via reversible XOR masking

Published Aug 25, 2026 · Updated Aug 25, 2026

Cross-site request forgery in Adminer before 5.4.3 allows remote attackers to execute arbitrary SQL through authenticated sessions. The get_token function returns both a random mask and its XOR with the session secret, while verify_token reconstructs the value and uses loose comparison. Exploitation requires an observed token or blind guessing plus a victim's authenticated browser; accepted SQL executes with that victim's database privileges.

CVSS severity6.1
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in Adminer before 5.4.3 allows remote attackers to execute arbitrary SQL through authenticated sessions. The get_token function returns both a random mask and its XOR with the session secret, while verify_token reconstructs the value and uses loose comparison. Exploitation requires an observed token or blind guessing plus a victim's authenticated browser; accepted SQL executes with that victim's database privileges.

The record

CVE
CVE-2026-56706
Published
Aug 25, 2026
Updated
Aug 25, 2026
Vendor
Adminer
Product
Adminer
Classifications
CWE-330, CWE-352, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 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 <5.4.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Adminer · Adminerversion=0 <5.4.3

Published CVSS scores

6.8VulnCheck CNACVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H
6.1VulnCheck CNACVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-330Use of Insufficiently Random Values
CWE-352Cross-Site Request Forgery (CSRF)
T1190Exploit Public-Facing Application

Public exploit references

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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