CVE-2025-6700Public exploitNetwork attack vector

Reflected XSS via unescaped login error message

Published Jun 26, 2025 · Updated Jun 26, 2025

Reflected XSS in xuxueli XXL-SSO 1.1.0 allows remote attackers to run script in a user's browser via the login errorMsg parameter. WebController.login copies the request's errorMsg value into a model attribute, and login.ftl renders it into HTML without escaping. Exploitation requires a user to open a crafted login URL; the injected script runs in the login page's origin and can alter displayed content or act with the user's browser context.

CVSS severity6.1
Medium
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in xuxueli XXL-SSO 1.1.0 allows remote attackers to run script in a user's browser via the login errorMsg parameter. WebController.login copies the request's errorMsg value into a model attribute, and login.ftl renders it into HTML without escaping. Exploitation requires a user to open a crafted login URL; the injected script runs in the login page's origin and can alter displayed content or act with the user's browser context.

The record

CVE
CVE-2025-6700
Published
Jun 26, 2025
Updated
Jun 26, 2025
Vendor
Xuxueli
Product
XXL-SSO
Classifications
CWE-79, CWE-94, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 26, 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=1.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Xuxueli · XXL-SSOversion=1.1.0

Published CVSS scores

2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
4.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
5.0VulDBAV:N/AC:L/Au:N/C:N/I:P/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-94Improper Control of Generation of Code ('Code Injection')
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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