CVE-2026-23798Network attack vector

Authenticated PHP object injection via unsafe deserialization

Published Mar 5, 2026 · Updated Mar 5, 2026

Deserialization of untrusted data in Blubrry PowerPress 11.15.10 and earlier allows remote authenticated users to inject PHP objects. Published advisories do not identify the affected function or input, but confirm that attacker-controlled serialized data is deserialized without object restrictions. Contributor-level access is required, and code execution, file deletion, or data access requires a usable POP chain supplied by another installed plugin or theme.

CVSS severity8.8
High
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization of untrusted data in Blubrry PowerPress 11.15.10 and earlier allows remote authenticated users to inject PHP objects. Published advisories do not identify the affected function or input, but confirm that attacker-controlled serialized data is deserialized without object restrictions. Contributor-level access is required, and code execution, file deletion, or data access requires a usable POP chain supplied by another installed plugin or theme.

The record

CVE
CVE-2026-23798
Published
Mar 5, 2026
Updated
Mar 5, 2026
Vendor
Blubrry
Product
PowerPress
Classifications
CWE-502, CAPEC-586, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a <=<= 11.15.10 changes=[{"at":"11.15.11","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Blubrry · PowerPressversion=n/a <=<= 11.15.10 changes=[{"at":"11.15.11","status":"unaffected"}]

Published CVSS scores

8.8PatchstackCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
CAPEC-586Object Injection
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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