CVE-2026-12098Network attack vector

Author-level stored XSS via unfiltered embed metadata

Published Jun 18, 2026 · Updated Jun 18, 2026

Stored XSS in episode metadata in Blubrry PowerPress 11.16.8 and earlier allows remote authenticated users to inject scripts via the embed field. The embed value is written directly with update_post_meta() and later rendered without sufficient sanitization or output escaping, bypassing WordPress kses-on-save filtering. Author-level access is sufficient, and the stored script executes for visitors who open the affected episode page.

CVSS severity6.4
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in episode metadata in Blubrry PowerPress 11.16.8 and earlier allows remote authenticated users to inject scripts via the embed field. The embed value is written directly with update_post_meta() and later rendered without sufficient sanitization or output escaping, bypassing WordPress kses-on-save filtering. Author-level access is sufficient, and the stored script executes for visitors who open the affected episode page.

The record

CVE
CVE-2026-12098
Published
Jun 18, 2026
Updated
Jun 18, 2026
Vendor
Blubrry
Product
PowerPress
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 18, 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=0 <=11.16.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Blubrry · PowerPressversion=0 <=11.16.8

Published CVSS scores

6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

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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