dbcve.org
Debian LinuxOperating system · Debian

CVE-2012-0812

MEDIUM · 6.1 CVSS v3.1 Published 2019-11-22
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
PostfixAdmin 2.3.4 has multiple XSS vulnerabilities

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

PostfixAdmin 2.3.4 contains multiple Cross-Site Scripting (XSS) vulnerabilities. XSS flaws allow attackers to inject malicious client-side scripts into web pages viewed by other users, potentially stealing session cookies, credentials, or performing actions on behalf of victims.

MitigationUpgrade PostfixAdmin to the latest version which contains fixes for these XSS vulnerabilities. Until then, implement input validation and output encoding on all user-supplied data fields.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Debian LinuxOperating system
Affected:= 8.0= 9.0= 10.0
Postfix AdminApplication
Affected:= 2.3.4

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Confirm PostfixAdmin installation
    Locate PostfixAdmin web files in your web server document root (commonly /var/www/html/postfixadmin or similar), or query your package manager: dpkg -l | grep postfixadmin (Debian)
    Affected if PostfixAdmin is installed on the system
  2. Identify PostfixAdmin version
    Check the version file (VERSION or config) in the PostfixAdmin directory, or access the login page and inspect any version information displayed, or query: dpkg -p postfixadmin (Debian)
    Affected if The version is exactly 2.3.4
  3. Check Debian system package version
    If using Debian, run: dpkg -l | grep -i postfixadmin to see the installed package version
    Affected if The installed package version corresponds to PostfixAdmin 2.3.4 on Debian 8.0, 9.0, or 10.0
  4. Verify XSS exposure scope
    PostfixAdmin is a web application; XSS affects any interface accepting user input (login, admin panels, mailbox creation). Confirm the application is network-accessible or serves user-provided content
    Affected if PostfixAdmin 2.3.4 is actively serving web pages to users

You are affected if PostfixAdmin version 2.3.4 is installed and accessible, regardless of the underlying operating system.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade PostfixAdmin to the latest version which contains fixes for these XSS vulnerabilities. Until then, implement input validation and output encoding on all user-supplied data fields.

Fix this in Debian Linux Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,930
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2012-0812 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data