dbcve.org
Path TraversalWeakness · CWE-22

CVE-2023-7335

HIGH · 8.7 CVSS v4.0 Published 2026-01-22
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
96/100
Remediation priority · Urgent
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
EduSoho versions prior to 22.4.7 contain an arbitrary file read vulnerability in the classroom-course-statistics export functionality. A remote, unauthenticated attacker can supply crafted path traversal sequences in the fileNames[] parameter to read arbitrary files from the server filesystem, including application configuration files such as config/parameters.yml that may contain secrets and database credentials. Exploitation evidence was observed by the Shadowserver Foundation on 2026-01-19 (UTC).

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

EduSoho versions prior to 22.4.7 contain an arbitrary file read vulnerability in the classroom-course-statistics export functionality. A remote, unauthenticated attacker can supply crafted path traversal sequences in the fileNames[] parameter to read arbitrary files from the server filesystem, including application configuration files such as config/parameters.yml that may contain secrets and database credentials.

MitigationUpgrade to EduSoho version 22.4.7 or later to patch the path traversal vulnerability; if immediate patching is not feasible, block or restrict unauthenticated access to the classroom-course-statistics export endpoint at the network level.

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
None
Authentication
X
User interaction
None
Scope
X

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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 EduSoho is installed
    Locate the EduSoho installation directory and identify the version file or composer.json that contains the version number
    Affected if EduSoho is not present on the server - the CVE does not apply
  2. Determine installed version
    Locate the version file (typically version file in the root directory or the version defined in composer.json) and compare it to 22.4.7
    Affected if Installed version is lower than 22.4.7 - the version is vulnerable
  3. Check if classroom-course-statistics export is accessible
    Identify if the classroom-course-statistics export route exists in the application's routing configuration, typically found in src/AppBundle/Resources/config/routing.yml or similar routing files
    Affected if The route does not exist or is not accessible - the attack surface may not be present
  4. Verify fileNames parameter acceptance
    Examine the controller handling the classroom-course-statistics export action to confirm it accepts a fileNames[] parameter for file processing
    Affected if The application does not accept fileNames[] parameter in this endpoint - the specific vulnerability path may not exist

The server is affected if EduSoho version is below 22.4.7 AND the classroom-course-statistics export functionality with fileNames[] parameter is present and accessible.

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.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade to EduSoho version 22.4.7 or later to patch the path traversal vulnerability; if immediate patching is not feasible, block or restrict unauthenticated access to the classroom-course-statistics export endpoint at the network level.

Recommended fix High confidence

EduSoho 22.4.7 or later

  1. Upgrade EduSoho to version 22.4.7 or later to remediate the path traversal vulnerability
  2. If immediate upgrade is not possible, restrict access to the classroom-course-statistics export functionality at the web server or application firewall level
  3. Review server filesystem permissions to limit the web server process access to only necessary directories
  4. Audit access logs for suspicious requests containing '../' sequences in fileNames[] parameter
Caveat Review release notes for 22.4.x series for any breaking changes in custom themes, plugins, or integrations before upgrading production systems

Generated from the published advisory — verify against the referenced sources before acting.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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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-2023-7335 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