CVE-2026-8195Public exploitNetwork attack vector

Stored XSS via inline SVG file serving

Published May 9, 2026 · Updated May 9, 2026

Stored XSS in the SVG File Handler in JEECG JeecgBoot 3.9.0 through 3.9.1 allows remote authenticated users to execute scripts via uploaded SVG files. CommonController accepts SVG uploads, SsrfFileTypeFilter lets declaration-free SVG content pass, and WebMvcConfiguration serves it inline as image/svg+xml without authentication. An authenticated account is required to plant the file; any user who opens its public URL runs the embedded script in the application's browser origin.

CVSS severity4.3
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Stored XSS in the SVG File Handler in JEECG JeecgBoot 3.9.0 through 3.9.1 allows remote authenticated users to execute scripts via uploaded SVG files. CommonController accepts SVG uploads, SsrfFileTypeFilter lets declaration-free SVG content pass, and WebMvcConfiguration serves it inline as image/svg+xml without authentication. An authenticated account is required to plant the file; any user who opens its public URL runs the embedded script in the application's browser origin.

The record

CVE
CVE-2026-8195
Published
May 9, 2026
Updated
May 9, 2026
Vendor
Beijing Guoju Information Technology Co., Ltd.
Product
JeecgBoot
Classifications
CWE-94, CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 9, 2026CVE publishedPublication date reported by the CVE source.
  2. May 9, 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=3.9.0
  2. Affected versionversion=3.9.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Beijing Guoju Information Technology Co., Ltd. · JeecgBootversion=3.9.0; version=3.9.1

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
5.0VulDBAV:N/AC:L/Au:N/C:N/I:P/A:N
4.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/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 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')
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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