CVE-2026-44959
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 · uneditedA missing validation of user input exists when saving delivery limitations in Revive Adserver 6.0.6 and earlier. A low‑privileged user could add an unexpected component parameter and inject malicious PHP code into the compiledlimitations field, which would then be executed during banner delivery. Input sanitisation has been improved to ensure that unexpected parameters are filtered out.
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 confidenceA code injection vulnerability in Revive Adserver allows low-privileged users to inject malicious PHP code via the compiledlimitations field by adding unexpected component parameters. This code executes during banner delivery when the server processes the compiledlimitations data without proper validation.
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
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:L/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 Revive Adserver installationLocate Revive Adserver by searching for typical installation directories (e.g., /var/www/html/revive, /var/www/html/adserver, /opt/revive) or look for the revivestats.php file, or check for the characteristic 'revive' database name in MySQL/PostgreSQLAffected if Revive Adserver is installed on this system
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Identify installed versionCheck the VERSION file in the Revive Adserver root directory, or look in the database table 'app_log' for version entries, or access the admin interface and view the system information pageAffected if The version is lower than 6.0.7 (e.g., 6.0.0 through 6.0.6)
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Verify low-privilege user access existsCheck the database table 'auth' or 'users' to see if there are account records with role_type other than 'admin', or inspect the admin UI to confirm non-administrative user accounts exist with access to banner or limitation managementAffected if There are low-privilege (manager, advertiser, traffic) user accounts configured
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Check if compiledlimitations processing is activeExamine the database table 'banner' or 'ad_zone_assoc' for records that contain data in the 'compiledlimitations' field (SELECT compiledlimitations FROM banner WHERE compiledlimitations IS NOT NULL), or verify that ad serving is enabled in the systemAffected if The compiledlimitations field contains data and banner delivery is active
The environment is affected if Revive Adserver versions below 6.0.7 are installed, low-privilege users have access to the system, and the compiledlimitations feature is being used for banner delivery.
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 Revive Adserver version 6.0.7 or later, which implements improved input sanitization to filter unexpected parameters from delivery limitations.
- Consultation4.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,808.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-44959 — 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-2026-44959 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