CVE-2026-13334Network attack vector

Browser script execution via unescaped stag parameter

Published Jul 9, 2026 · Updated Jul 9, 2026

Reflected XSS in Mang Board WP 2.3.4 and earlier allows remote attackers to inject browser scripts through a crafted stag parameter. The board request path passes stag through store and board helpers and emits it in the basic skin header without sufficient sanitization or context-appropriate output escaping. The script runs only after a user follows the crafted link, under the vulnerable site's browser origin, enabling page-content manipulation and access to browser-visible data.

CVSS severity6.1
Medium
EPSS probability0.38%
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 Mang Board WP 2.3.4 and earlier allows remote attackers to inject browser scripts through a crafted stag parameter. The board request path passes stag through store and board helpers and emits it in the basic skin header without sufficient sanitization or context-appropriate output escaping. The script runs only after a user follows the crafted link, under the vulnerable site's browser origin, enabling page-content manipulation and access to browser-visible data.

The record

CVE
CVE-2026-13334
Published
Jul 9, 2026
Updated
Jul 9, 2026
Vendor
Kitae Park
Product
Mang Board WP
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 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 <=2.3.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Kitae Park · Mang Board WPversion=0 <=2.3.4

Published CVSS scores

6.1WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001User Execution: Malicious Link

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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