CVE-2025-58619
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 · uneditedDeserialization of Untrusted Data vulnerability in sbouey Falang multilanguage falang allows Object Injection.This issue affects Falang multilanguage: from n/a through <= 1.3.65.
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 confidenceThis is a PHP Object Injection vulnerability in the Falang multilanguage Joomla extension. The plugin deserializes untrusted data without proper validation, allowing attackers to inject arbitrary PHP objects. Successful exploitation can lead to remote code execution, file operations, or other attacks depending on available classes in the application ecosystem.
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
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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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Verify Falang extension is installedCheck your Joomla extensions directory for the Falang component or list installed extensions in the Joomla administrator panel under Extensions > ManageAffected if Falang multilanguage extension is present in the Joomla installation
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Identify the installed Falang versionIn Joomla admin, go to Components > Falang and look for the version number in the component header or footer, or inspect the extension manifest XML file in /administrator/components/com_falang/Affected if The version cannot be determined or is unknown, treat as potentially vulnerable
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Confirm the vulnerable component is enabledIn Joomla admin, go to Components > Falang and verify the multilingual translation component is active, or check the plugin manager for Falang system plugins and verify they are enabledAffected if The Falang component or its system plugins are enabled and running
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Check for the vulnerable unserialize pattern in the codeInspect Falang source files for unserialize() calls that process user-supplied input (such as from request parameters, POST data, or cookies) without proper validation; look in files under /administrator/components/com_falang/ and /components/com_falang/Affected if Code contains unserialize() calls operating on untrusted user input without sanitization
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Verify exposure to untrusted inputTest if the Falang component accepts and processes serialized data through URL parameters, form inputs, or cookies that could be manipulated by an attackerAffected if The Falang component processes serialized data from untrusted sources without validation
If the Falang multilanguage extension is installed, enabled, and processes untrusted serialized data through vulnerable unserialize calls, the environment is affected by this PHP Object Injection vulnerability.
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 dataUpdate to a patched version if available. Otherwise, audit the codebase for unserialize() calls on user input and replace with safer alternatives like json_decode, or implement strict class allowlisting using the allowed_classes option if unserialize must be used.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-58619 — 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-2025-58619 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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