CVE-2025-15415Public exploitNetwork attack vector

Stored XSS via default XML upload allowance

Published Jan 1, 2026 · Updated Jan 1, 2026

Stored cross-site scripting in xnx3 Wangmarket 6.0 through 6.4 allows remote authenticated users to execute script via an uploaded XML file. The uploadImage function passes the extension to isAllowUpload, whose default allowlist accepts XML and stores attacker-controlled active content. An authenticated site-management session and subsequent browser access to the stored XML are required, after which its JavaScript runs in the site's origin.

CVSS severity5.4
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in xnx3 Wangmarket 6.0 through 6.4 allows remote authenticated users to execute script via an uploaded XML file. The uploadImage function passes the extension to isAllowUpload, whose default allowlist accepts XML and stores attacker-controlled active content. An authenticated site-management session and subsequent browser access to the stored XML are required, after which its JavaScript runs in the site's origin.

The record

CVE
CVE-2025-15415
Published
Jan 1, 2026
Updated
Jan 1, 2026
Vendor
xnx3
Product
Wangmarket
Classifications
CWE-434, CWE-284, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 1, 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=6.0
  2. Affected versionversion=6.1
  3. Affected versionversion=6.2
  4. Affected versionversion=6.3
  5. Affected versionversion=6.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

xnx3 · Wangmarketversion=6.0; version=6.1; version=6.2; version=6.3; version=6.4

Published CVSS scores

5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
CWE-284Improper Access Control
T1189Drive-by Compromise

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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