CVE-2026-49108
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 · uneditedUnauthenticated PHP Object Injection in Moderno < 1.43 versions.
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 an unauthenticated PHP Object Injection vulnerability in Moderno versions prior to 1.43. Attackers can exploit insecure deserialization of untrusted data to inject malicious PHP objects without any authentication, potentially achieving remote code execution through available gadget chains in the application or its dependencies.
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
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/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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Identify Moderno installation and versionLocate the Moderno application in your web root and check its version indicator (such as a version file, changelog, or admin panel)Affected if The installed version is lower than 1.43 (e.g., 1.42, 1.41, etc.)
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Verify deserialization functionality is exposedSearch for PHP unserialize() calls in the codebase, particularly in endpoints that process user input without authenticationAffected if The application uses unserialize() on data that originates from user input without prior sanitization
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Check for unauthenticated access to deserialization entry pointsIdentify public-facing PHP scripts that accept serialized data and are accessible without loginAffected if Unauthenticated endpoints accept and process serialized PHP objects
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Confirm input validation is absent or insufficientReview the data flow from user input to the deserialization function, checking if any validation occurs beforehandAffected if No input validation, type checking, or whitelist filtering is performed before deserialization
A user is affected if Moderno version is below 1.43 AND the application deserializes untrusted user-supplied data without authentication or 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.
dbcve · scopedUpgrade Moderno to version 1.43 or later. If immediate upgrade is not possible, disable deserialization of untrusted data and implement strict input validation on all user-supplied data before deserialization.
Moderno version 1.43
- Update Moderno theme/plugin to version 1.43 or later to resolve the unauthenticated PHP object injection vulnerability.
- Verify the update was successful by checking the installed version number.
- Test critical functionality on a staging environment before deploying to production.
- Ensure regular security audits are conducted to detect similar vulnerabilities.
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,408.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-49108 — 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-2026-49108 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
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data