YabbApplication

CVE-2003-0275

MEDIUM · 5.1 CVSS v2.0 Published 2003-06-16
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
60/100
Remediation priority · Elevated
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
SSI.php in YaBB SE 1.5.2 allows remote attackers to execute arbitrary PHP code by modifying the sourcedir parameter to reference a URL on a remote web server that contains the code.

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

SSI.php in YaBB SE 1.5.2 contains a remote file include (RFI) vulnerability via the sourcedir parameter, allowing remote attackers to execute arbitrary PHP code by pointing the parameter to a malicious remote URL containing PHP code.

MitigationUpgrade YaBB SE to a patched version, or disable the SSI.php file if unused; alternatively, disable allow_url_fopen and allow_url_include in PHP configuration to prevent remote file inclusion.

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
YabbApplication
Affected:= 1.5.2

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
High
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:H/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. Identify YaBB SE installation and version
    Check the version file in your YaBB SE installation directory, typically found in a version.php or similar file, or check the YaBB SE admin panel for the installed version number
    Affected if The installed version is YaBB SE 1.5.2 exactly
  2. Locate SSI.php file
    Search for the SSI.php file in the web document root where YaBB SE is installed
    Affected if SSI.php exists in the YaBB SE installation directory and is web-accessible
  3. Verify sourcedir parameter usage in SSI.php
    Open SSI.php and examine if the sourcedir parameter is used in include/require statements without proper sanitization
    Affected if The sourcedir parameter is used in include() or require() statements without validation, allowing arbitrary URL injection
  4. Check PHP allow_url_fopen setting
    Review php.ini or run phpinfo() to check if the PHP directive allow_url_fopen is enabled
    Affected if allow_url_fopen is set to On, which permits URL-aware fopen wrappers and enables remote file inclusion attacks

You are affected if YaBB SE 1.5.2 is installed, SSI.php is web-accessible, and the sourcedir parameter can be controlled externally, especially with allow_url_fopen enabled in PHP

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 YaBB SE to a patched version, or disable the SSI.php file if unused; alternatively, disable allow_url_fopen and allow_url_include in PHP configuration to prevent remote file inclusion.

Fix this in Yabb Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,560.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2003-0275 — 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-2003-0275 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