CVE-2025-49253
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 · uneditedImproper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in thembay Lasa lasa allows PHP Local File Inclusion.This issue affects Lasa: from n/a through <= 1.1.
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 confidenceLocal File Inclusion (LFI) vulnerability in thembay Lasa (version 1.1 and below) allows attackers to read sensitive local files on the server through improper control of filenames in PHP include/require statements. User-controlled input is directly used in file inclusion functions without validation, enabling path traversal attacks.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
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
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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 checksWork through these to decide whether this CVE applies to you.
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Confirm thembay Lasa installationSearch for thembay Lasa files on the server. Look for directories named 'lasa', 'thembay-lasa', or similar, or check web server document roots for Lasa-related PHP files and templates.Affected if thembay Lasa software is present on the server
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Identify installed Lasa versionCheck version file, README, or composer.json in the Lasa installation directory for version metadata. Compare against version 1.1.Affected if Installed version is 1.1 or any version below 1.1
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Locate PHP file inclusion codeSearch PHP source files for include, include_once, require, or require_once statements that reference variables, such as: include($_GET['...']), include($var), or similar patterns where user input flows to inclusion functions.Affected if File inclusion code uses unvalidated user-supplied input in include/require statements
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Inspect input handling for path traversalReview PHP files that handle file inclusion and trace how URL parameters or form inputs are processed. Check if parameters used in include/require calls are sanitized or validated before use.Affected if User-controllable parameters are used directly in file inclusion without validation or whitelist filtering
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Check for sensitive file accessTest whether the application permits path traversal (e.g., ../../../../etc/passwd) via parameters used in inclusion functions. Note: Only perform this test in non-production environments with authorization.Affected if Path traversal sequences in input allow reading files outside the intended directory
The environment is affected if thembay Lasa version 1.1 or below is installed AND user-controlled input flows directly into PHP include/require statements without validation.
Generated from the published advisory. Verify against your own configuration.
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 dataImplement strict input validation using whitelist-based allowlists for file inclusion paths, avoid using user input directly in include/require statements, use realpath() to canonicalize and verify included files are within expected directories, and consider migrating to database-driven content loading.
- Consultation6.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-49253 — 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 sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-49253 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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