CVE-2026-45622Public exploitNetwork attack vector

Unauthenticated reflected XSS via unescaped order ID

Published May 15, 2026 · Updated May 15, 2026

Reflected XSS in Vvveb CMS 1.0.8.2 allows remote attackers to execute JavaScript in a submitting user's browser via a public form. The return-form controller inserts customer_order_id into an order-not-found message, and the frontend template emits that message without HTML escaping. Exploitation requires submission through the POST and CSRF workflow; script execution is confined to the submitting browser's Vvveb origin.

CVSS severityUnavailable
Unscored
EPSS probability0.26%
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 Vvveb CMS 1.0.8.2 allows remote attackers to execute JavaScript in a submitting user's browser via a public form. The return-form controller inserts customer_order_id into an order-not-found message, and the frontend template emits that message without HTML escaping. Exploitation requires submission through the POST and CSRF workflow; script execution is confined to the submitting browser's Vvveb origin.

The record

CVE
CVE-2026-45622
Published
May 15, 2026
Updated
May 15, 2026
Vendor
givanz
Product
Vvveb
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 15, 2026CVE publishedPublication date reported by the CVE source.
  2. May 15, 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=< 1.0.8.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

givanz · Vvvebversion=< 1.0.8.3

Published CVSS scores

No CVSS assessment is available in this record.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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