CVE-2025-3435Network attack vector

Stored XSS via unescaped board header and footer

Published Apr 24, 2025 · Updated Apr 8, 2026

Stored XSS in Mang Board WP 1.8.6 and earlier allows remote authenticated users to inject scripts through board settings. The board settings path stores board_header and board_footer values without sufficient sanitization and renders them without output escaping. Administrator access is required, and exposure is limited to multisite installations or sites with unfiltered_html disabled; injected scripts execute when a user opens the affected board page.

CVSS severity4.4
Medium
EPSS probability0.22%
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 Mang Board WP 1.8.6 and earlier allows remote authenticated users to inject scripts through board settings. The board settings path stores board_header and board_footer values without sufficient sanitization and renders them without output escaping. Administrator access is required, and exposure is limited to multisite installations or sites with unfiltered_html disabled; injected scripts execute when a user opens the affected board page.

The record

CVE
CVE-2025-3435
Published
Apr 24, 2025
Updated
Apr 8, 2026
Vendor
Kitae Park
Product
Mang Board WP
Classifications
CWE-79, T1189
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 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 <=1.8.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Kitae Park · Mang Board WPversion=0 <=1.8.6

Published CVSS scores

4.4Wordfence IntelligenceCVSS: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.

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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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

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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