CVE-2026-1631Public exploitNetwork attack vector

Subscriber-level license deletion via unchecked AJAX action

Published May 18, 2026 · Updated May 18, 2026

Missing authorization in Feeds for YouTube before 2.6.4 allows remote authenticated users to delete stored license data through WordPress AJAX. The actions function handles the sby_recheck_connection request without a capability check and deletes the sby_islicence_upgraded and sby_upgraded_info options. Subscriber-level access is sufficient; the demonstrated consequence is loss of the plugin's saved license state, not broader site control.

CVSS severity5.4
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Feeds for YouTube before 2.6.4 allows remote authenticated users to delete stored license data through WordPress AJAX. The actions function handles the sby_recheck_connection request without a capability check and deletes the sby_islicence_upgraded and sby_upgraded_info options. Subscriber-level access is sufficient; the demonstrated consequence is loss of the plugin's saved license state, not broader site control.

The record

CVE
CVE-2026-1631
Published
May 18, 2026
Updated
May 18, 2026
Vendor
Smash Balloon
Product
Feeds for YouTube
Classifications
CWE-862, T1485
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 18, 2026CVE publishedPublication date reported by the CVE source.
  2. May 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 <2.6.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Smash Balloon · Feeds for YouTubeversion=0 <2.6.4

Published CVSS scores

5.4CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

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 exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1485Data Destruction

Public exploit references

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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