CVE-2026-23798
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 blubrry PowerPress Podcasting powerpress allows Object Injection.This issue affects PowerPress Podcasting: from n/a through <= 11.15.10.
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 confidenceThe blubrry PowerPress Podcasting plugin for WordPress contains a deserialization vulnerability (CWE-502) where untrusted data is passed to PHP's unserialize() function, allowing remote attackers to inject arbitrary PHP objects. This could lead to remote code execution, file operations, or other attacks depending on available classes in the application scope.
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:3.1/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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Verify PowerPress plugin is installedIn WordPress admin, go to Plugins > Installed Plugins and look for 'PowerPress Podcasting' or 'Blubrry PowerPress' in the list. Alternatively, check the /wp-content/plugins/ directory for a folder named 'powerpress' or 'blubrry-powerpress'.Affected if The plugin is present in the WordPress installation
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Determine the installed PowerPress versionIn WordPress admin, click on the PowerPress plugin in the plugin list to view the version number displayed below the plugin name. Alternatively, check the main plugin file header in /wp-content/plugins/powerpress/powerpress.php or /wp-content/plugins/blubrry-powerpress/powerpress.php for the 'Version' tag.Affected if The version is lower than 11.15.11 (e.g., 11.15.10 or earlier)
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Check for known vulnerable entry pointsSearch the plugin directory for uses of unserialize() function by examining PHP files in the powerpress plugin folder. Look for code patterns like 'unserialize($_GET[', 'unserialize($_POST[', or 'unserialize($_REQUEST' that accept user input directly.Affected if The plugin code contains unserialize() calls handling untrusted input without validation
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Review access logs for deserialization attack signaturesExamine web server access logs (Apache, Nginx) for requests to the PowerPress plugin that contain PHP serialized object patterns (e.g., O: followed by numbers, a: followed by array counts). Look for base64-encoded serialized payloads often seen in exploitation attempts.Affected if Log entries show serialized PHP objects being sent to PowerPress endpoints
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Check for malicious files created via exploitationLook in the wp-content/uploads/ directory and other writable locations for newly created PHP files with suspicious names, encoded content, or shell scripts. Also check for modifications to existing plugin files that may have been injected.Affected if Unexpected PHP files exist or known plugin files have been modified without intentional admin changes
A user is affected if the PowerPress Podcasting plugin is installed with a version lower than 11.15.11 and contains vulnerable unserialize() code handling untrusted input.
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 the latest version of PowerPress Podcasting plugin (11.15.11 or higher) immediately. If no patch is available, disable the plugin until a fix is released.
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-23798 — 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-2026-23798 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
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