CVE-2025-6509Public exploitNetwork attack vector

Browser script execution via unescaped name parameter

Published Jun 23, 2025 · Updated Jun 23, 2025

Reflected XSS in seaswalker spring-analysis allows remote authenticated users to execute browser script through the /echo name parameter. SimpleController.echo concatenates the request's name value into the echo model attribute, and echo.jsp renders that value in an h1 element without escaping or sanitization. Reaching the endpoint requires low-privileged access, and another user must load the crafted response; successful exploitation changes page content in that user's browser.

CVSS severity3.5
Low
EPSS probability0.27%
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 seaswalker spring-analysis allows remote authenticated users to execute browser script through the /echo name parameter. SimpleController.echo concatenates the request's name value into the echo model attribute, and echo.jsp renders that value in an h1 element without escaping or sanitization. Reaching the endpoint requires low-privileged access, and another user must load the crafted response; successful exploitation changes page content in that user's browser.

The record

CVE
CVE-2025-6509
Published
Jun 23, 2025
Updated
Jun 23, 2025
Vendor
seaswalker
Product
spring-analysis
Classifications
CWE-94, CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 23, 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=4379cce848af96997a9d7ef91d594aa129be8d71

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

seaswalker · spring-analysisversion=4379cce848af96997a9d7ef91d594aa129be8d71

Published CVSS scores

2.0VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
3.5VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
4.0VulDBAV:N/AC:L/Au:S/C:N/I:P/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.

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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-94Improper Control of Generation of Code ('Code Injection')
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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