CVE-2025-63027Network attack vector

Contributor-level stored XSS via insufficient sanitization

Published Dec 30, 2025 · Updated Dec 30, 2025

Stored cross-site scripting in WebCreations907 WBC907 Core 3.4.1 and earlier allows remote authenticated users to inject web scripts into pages. Published records identify insufficient input sanitization and output escaping, but do not disclose the affected function, field, or rendering path. Contributor-level access is required, and the stored script runs when another user visits the injected page, enabling browser-context actions as that visitor.

CVSS severity6.5
Medium
EPSS probability0.15%
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 WebCreations907 WBC907 Core 3.4.1 and earlier allows remote authenticated users to inject web scripts into pages. Published records identify insufficient input sanitization and output escaping, but do not disclose the affected function, field, or rendering path. Contributor-level access is required, and the stored script runs when another user visits the injected page, enabling browser-context actions as that visitor.

The record

CVE
CVE-2025-63027
Published
Dec 30, 2025
Updated
Dec 30, 2025
Vendor
WebCreations907
Product
WBC907 Core
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 30, 2025Record 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=n/a <=3.4.1 changes=[{"at":"3.4.2","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WebCreations907 · WBC907 Coreversion=n/a <=3.4.1 changes=[{"at":"3.4.2","status":"unaffected"}]

Published CVSS scores

6.5PatchstackCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/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

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Your stack

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