CVE-2026-57673Network attack vector

Unauthenticated stored script execution via unescaped image URLs

Published Jul 2, 2026 · Updated Jul 2, 2026

Stored XSS in Themeisle Optimole 4.2.7 and earlier allows remote attackers to inject scripts through image URLs. The build_url method in inc/url_replacer.php passes the attacker-controlled URL to image normalization without esc_url, allowing active content to survive into generated page output. No authentication is required, but a user must visit an injected page; the script then executes in that browser under the affected site origin.

CVSS severity7.1
High
EPSS probability0.25%
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 Optimole 4.2.7 and earlier allows remote attackers to inject scripts through image URLs. The build_url method in inc/url_replacer.php passes the attacker-controlled URL to image normalization without esc_url, allowing active content to survive into generated page output. No authentication is required, but a user must visit an injected page; the script then executes in that browser under the affected site origin.

The record

CVE
CVE-2026-57673
Published
Jul 2, 2026
Updated
Jul 2, 2026
Vendor
Query Solutions Ltd.
Product
Optimole
Classifications
CWE-79, CAPEC-588, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 2, 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 <=4.2.7 changes=[{"at":"4.2.8","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Query Solutions Ltd. · Optimoleversion=n/a <=4.2.7 changes=[{"at":"4.2.8","status":"unaffected"}]

Published CVSS scores

7.1PatchstackCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
CAPEC-588DOM-Based XSS
T1059.007Command and Scripting Interpreter: JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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