CVE-2025-11276Network attack vector

Authenticated stored browser script execution

Published Oct 5, 2025 · Updated Oct 6, 2025

Stored cross-site scripting in REBUILD 4.1.0 through 4.1.3 allows remote authenticated users to inject script through Comment/Guestbook content. Neither the CNA record nor the referenced 4.1.4 release discloses the affected function, input field, or missing neutralization operation. Execution requires a signed-in user to submit crafted content and another user to view it; published assessments report integrity impact only.

CVSS severity3.5
Low
EPSS probability0.25%
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 REBUILD 4.1.0 through 4.1.3 allows remote authenticated users to inject script through Comment/Guestbook content. Neither the CNA record nor the referenced 4.1.4 release discloses the affected function, input field, or missing neutralization operation. Execution requires a signed-in user to submit crafted content and another user to view it; published assessments report integrity impact only.

The record

CVE
CVE-2025-11276
Published
Oct 5, 2025
Updated
Oct 6, 2025
Vendor
Shanghai Ruifang Technology Co., Ltd.
Product
REBUILD
Classifications
CWE-94, CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 5, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 6, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.1.0
  2. Affected versionversion=4.1.1
  3. Affected versionversion=4.1.2
  4. Affected versionversion=4.1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Shanghai Ruifang Technology Co., Ltd. · REBUILDversion=4.1.0; version=4.1.1; version=4.1.2; version=4.1.3

Published CVSS scores

4.0VulDBAV:N/AC:L/Au:S/C:N/I:P/A:N
5.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
3.5VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/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-94เอียดImproper Control of Generation of Code ('Code Injection')
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript

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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