CVE-2026-7421Network attack vector

Visitor script execution via unsanitized shop URL

Published Jun 2, 2026 · Updated Jun 2, 2026

Stored cross-site scripting in Passeum Ticketing 1.0 and earlier allows remote authenticated users to run external scripts on shortcode pages. The get_shop_url method returns a shop_name value beginning with http without sanitization after validate_shop_name checks only its type and emptiness. Administrator access on a multisite installation is required; the plugin loads JavaScript and CSS from that URL on affected frontend pages, exposing visitors to script execution in the site origin.

CVSS severity4.4
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stored cross-site scripting in Passeum Ticketing 1.0 and earlier allows remote authenticated users to run external scripts on shortcode pages. The get_shop_url method returns a shop_name value beginning with http without sanitization after validate_shop_name checks only its type and emptiness. Administrator access on a multisite installation is required; the plugin loads JavaScript and CSS from that URL on affected frontend pages, exposing visitors to script execution in the site origin.

The record

CVE
CVE-2026-7421
Published
Jun 2, 2026
Updated
Jun 2, 2026
Vendor
Passeum
Product
Passeum Ticketing
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jun 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Passeum · Passeum Ticketingversion=0 <=1.0

Published CVSS scores

4.4WordfenceCVSS:3.1/AV:N/AC:H/PR:H/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.

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
Privilegesadmin
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo