CVE-2011-3611Public exploitNetwork attack vector

Administrator file execution via unsanitized action parameter

Published Jan 22, 2020 · Updated Aug 6, 2024

Local file inclusion in UseBB before 1.0.12 allows remote authenticated administrators to include and execute files through admin.php. The admin.php dispatcher incorporates the act parameter into a PHP include path without adequately sanitizing traversal sequences. Execution requires an authenticated administrator and a sources/admin_ directory, which the upstream project states is absent from a standard UseBB 1 installation.

CVSS severity7.2
High
EPSS probability2.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local file inclusion in UseBB before 1.0.12 allows remote authenticated administrators to include and execute files through admin.php. The admin.php dispatcher incorporates the act parameter into a PHP include path without adequately sanitizing traversal sequences. Execution requires an authenticated administrator and a sources/admin_ directory, which the upstream project states is absent from a standard UseBB 1 installation.

The record

CVE
CVE-2011-3611
Published
Jan 22, 2020
Updated
Aug 6, 2024
Vendor
UseBB
Product
UseBB
Classifications
CWE-20, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jan 22, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2024Record 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=before 1.0.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

UseBB · UseBBversion=before 1.0.12

Published CVSS scores

7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
9.0NIST NVDAV:N/AC:L/Au:S/C:C/I:C/A:C

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
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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