CVE-2026-78264Network attack vector

Browser script execution via field-suggestion AJAX response

Published Aug 24, 2026 · Updated Aug 25, 2026

Reflected XSS in OnTheGoSystems Toolset Blocks 1.6.26 and earlier allows remote attackers to run scripts via an AJAX request. The field-suggestion AJAX endpoint returns attacker-controlled suggestion data without sufficient output neutralization. Exploitation requires a privileged user to follow a crafted request, after which script executes in that user's WordPress origin and can access browser-available data or actions.

CVSS severity7.1
High
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in OnTheGoSystems Toolset Blocks 1.6.26 and earlier allows remote attackers to run scripts via an AJAX request. The field-suggestion AJAX endpoint returns attacker-controlled suggestion data without sufficient output neutralization. Exploitation requires a privileged user to follow a crafted request, after which script executes in that user's WordPress origin and can access browser-available data or actions.

The record

CVE
CVE-2026-78264
Published
Aug 24, 2026
Updated
Aug 25, 2026
Vendor
OnTheGoSystems
Product
Toolset Blocks
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 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 <=1.6.26 changes=[{"at":"1.6.27","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OnTheGoSystems · Toolset Blocksversion=n/a <=1.6.26 changes=[{"at":"1.6.27","status":"unaffected"}]

Published CVSS scores

7.1Patchstack CNACVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/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.

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

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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