PhorumApplication

CVE-2004-2110

HIGH · 7.5 CVSS v2.0 Published 2004-12-31
Fix available
A fix is available. Upgrade to after 3.4.5 or later.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges Zero-click

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
SQL injection vulnerability in register.php in Phorum before 3.4.6 allows remote attackers to execute arbitrary SQL commands via the hide_email parameter.

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 · high confidence

SQL injection vulnerability in Phorum's register.php allows remote attackers to inject arbitrary SQL commands via the unharnessed hide_email parameter during user registration. This occurs because the parameter is not properly sanitized before being incorporated into an SQL query, enabling attackers to manipulate database operations.

MitigationUpgrade to Phorum 3.4.6 or later to obtain the patched version; as a temporary workaround, disable new user registration or implement input validation/WAF rules to block SQL injection attempts in the hide_email parameter.

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
PhorumApplication
Affected:<= 3.4.5

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
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:L/Au:N/C:P/I:P/A:P

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. Locate the Phorum installation
    Search the web server's document root for the file register.php, typically found in the main Phorum directory (e.g., /var/www/html/phorum/register.php or similar path based on your web server configuration).
    Affected if register.php exists and the server is running Phorum software.
  2. Determine the installed Phorum version
    Open the file include/version.php or check the file header comments in register.php for a version number string (such as '3.4.x'). Compare this version against the affected range of Phorum <= 3.4.5.
    Affected if The installed version is 3.4.5 or any earlier version within the 3.x series.
  3. Confirm user registration is enabled
    Log into the Phorum administrative control panel and navigate to the 'Users' or 'Registration' settings section, or inspect the database table 'phorum_settings' for the 'allow_new_registrations' setting set to 1.
    Affected if New user registration is currently permitted on the forum.
  4. Inspect the hide_email parameter handling in register.php
    Open register.php and search for code that processes the 'hide_email' variable (look for lines containing 'hide_email' used in SQL queries without escaping functions like addslashes, mysql_real_escape_string, or parameterized queries).
    Affected if The hide_email parameter is directly concatenated into an SQL query without sanitization.

You are affected if Phorum version 3.4.5 or lower is installed, user registration is enabled, and the hide_email parameter in register.php is processed without SQL input sanitization.

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
Upgrade available Upgrade to a release after 3.4.5
Interim mitigation

Upgrade to Phorum 3.4.6 or later to obtain the patched version; as a temporary workaround, disable new user registration or implement input validation/WAF rules to block SQL injection attempts in the hide_email parameter.

Fix this in Phorum Scoped from the published advisory
  • Consultation3.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,130
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,408.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2004-2110 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

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-2004-2110 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