CVE-2026-1151Public exploitNetwork attack vector

Stored script execution via unencoded Nickname

Published Jan 19, 2026 · Updated Jan 19, 2026

Stored XSS in mpay 1.2.0 through 1.2.4 allows remote authenticated users to run script in another user's browser via a crafted Nickname. The User Center's username-modification flow stores the Nickname value and later renders it without adequate HTML encoding. High-privilege access is required to plant the value, and a second user must view the affected page; the demonstrated consequence is persistent page-content modification.

CVSS severity5.4
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 mpay 1.2.0 through 1.2.4 allows remote authenticated users to run script in another user's browser via a crafted Nickname. The User Center's username-modification flow stores the Nickname value and later renders it without adequate HTML encoding. High-privilege access is required to plant the value, and a second user must view the affected page; the demonstrated consequence is persistent page-content modification.

The record

CVE
CVE-2026-1151
Published
Jan 19, 2026
Updated
Jan 19, 2026
Vendor
Beijing Kaite Weiye Science and Technology Co., Ltd.
Product
mpay
Classifications
CWE-94, CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 19, 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=1.2.0
  2. Affected versionversion=1.2.1
  3. Affected versionversion=1.2.2
  4. Affected versionversion=1.2.3
  5. Affected versionversion=1.2.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Beijing Kaite Weiye Science and Technology Co., Ltd. · mpayversion=1.2.0; version=1.2.1; version=1.2.2; version=1.2.3; version=1.2.4

Published CVSS scores

2.4VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
3.3VulDBAV:N/AC:L/Au:M/C:N/I:P/A:N
1.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
5.4NIST NVDCVSS: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-94Code Injection
CWE-79Cross Site Scripting
T1059.007JavaScript/JScript

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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