CVE-2026-15653Network attack vector

Stored script execution via unescaped backend title

Published Jul 24, 2026 · Updated Jul 24, 2026

Stored XSS in Themeisle Visualizer 4.0.5 and earlier allows remote authenticated users to inject scripts through backend-title. Chart-title handling stores the parameter without sufficient sanitization and later renders it without output escaping. Contributor-level access is sufficient, and the stored script executes under the site origin whenever a user opens a page containing the affected chart.

CVSS severity6.4
Medium
EPSS probability0.19%
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 Themeisle Visualizer 4.0.5 and earlier allows remote authenticated users to inject scripts through backend-title. Chart-title handling stores the parameter without sufficient sanitization and later renders it without output escaping. Contributor-level access is sufficient, and the stored script executes under the site origin whenever a user opens a page containing the affected chart.

The record

CVE
CVE-2026-15653
Published
Jul 24, 2026
Updated
Jul 24, 2026
Vendor
Query Solutions Ltd.
Product
Visualizer
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 24, 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 <=4.0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Query Solutions Ltd. · Visualizerversion=0 <=4.0.5

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 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-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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