CVE-2026-11912Public exploitNetwork attack vector

Unauthenticated file modification via broken AJAX guard

Published Jun 20, 2026 · Updated Jun 20, 2026

Missing authorization in Simple File List 6.3.7 and earlier allows remote attackers to modify or delete server files through AJAX. The simplefilelist_edit_job handler treats is_admin() as authorization, but admin-ajax.php makes that check true before AllowFrontManage is evaluated. No account or enabled front-end management setting is required, and successful requests can alter or remove files reachable by the plugin.

CVSS severity7.5
High
EPSS probability0.52%
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 Simple File List 6.3.7 and earlier allows remote attackers to modify or delete server files through AJAX. The simplefilelist_edit_job handler treats is_admin() as authorization, but admin-ajax.php makes that check true before AllowFrontManage is evaluated. No account or enabled front-end management setting is required, and successful requests can alter or remove files reachable by the plugin.

The record

CVE
CVE-2026-11912
Published
Jun 20, 2026
Updated
Jun 20, 2026
Vendor
Mitchell Bennis
Product
Simple File List
Classifications
CWE-862, T1565.001, T1485
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 20, 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 <=6.3.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Mitchell Bennis · Simple File Listversion=0 <=6.3.7

Published CVSS scores

7.5WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A: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.

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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 exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1565.001Stored Data Manipulation
T1485Data Destruction

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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