CVE-2025-31800
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 Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in publitio Publitio publitio allows Path Traversal.This issue affects Publitio: from n/a through <= 2.2.0.
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 confidencePublitio versions 2.2.0 and earlier contain a path traversal vulnerability that allows attackers to access files outside the intended restricted directory. This improper limitation of pathname allows manipulation of file paths using sequences like '../' to traverse the filesystem and potentially read sensitive files or access unauthorized resources.
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
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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 checksWork through these to decide whether this CVE applies to you.
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Check installed Publitio versionLocate the version file or check the application header/admin panel for the current version number. Common locations include version.php, package.json, or the admin dashboard About section.Affected if The installed version is 2.2.0 or any earlier version (e.g., 2.1.x, 2.0.x, 1.x)
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Identify file path input pointsReview the application's API endpoints or file handling functions that accept file path parameters, particularly those used for file retrieval, preview, or download operations.Affected if The application exposes endpoints that accept file path parameters without clear restriction to a base directory
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Test for missing path validationInspect the source code or configuration for file handling functions. Look for whether the application uses basename() or allowlist validation on path inputs before accessing files.Affected if No basename(), realpath(), or allowlist validation is found on file path parameters
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Check for unrestricted path traversal in APIIf you have access to test the API, attempt a request with a path like ../../etc/passwd or ../../config to see if the application blocks or allows the traversal sequence.Affected if The API accepts and processes path traversal sequences like ../ without rejecting them
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Review access logs for traversal attemptsExamine web server and application logs for patterns containing ../ in file access requests, which may indicate exploitation attempts.Affected if Logs show successful file access requests using ../ sequences to reach files outside the intended directory
A user is affected if their Publitio installation is version 2.2.0 or earlier AND the application exposes file path parameters without proper validation using basename() or allowlist checks.
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 dataUpgrade to a patched version of Publitio if available, or implement strict input validation using basename() and allowlist checks to ensure all file path inputs are confined to expected directories.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-31800 — 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-2025-31800 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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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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