CVE-2020-19704Network attack vector

Stored script execution via ResourceController

Published Aug 26, 2021 · Updated Aug 4, 2024

Stored XSS in spring-boot-admin 20190710 allows remote authenticated users to execute scripts or render HTML in another user's browser. The public report identifies ResourceController.java as the affected locus but does not disclose which request field is stored or how its value reaches an HTML response without safe output encoding. Exploitation requires low-privileged access and a user to view the stored content, enabling browser-context data access or modification without interrupting the service.

CVSS severity5.4
Medium
EPSS probability0.47%
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 spring-boot-admin 20190710 allows remote authenticated users to execute scripts or render HTML in another user's browser. The public report identifies ResourceController.java as the affected locus but does not disclose which request field is stored or how its value reaches an HTML response without safe output encoding. Exploitation requires low-privileged access and a user to view the stored content, enabling browser-context data access or modification without interrupting the service.

The record

CVE
CVE-2020-19704
Published
Aug 26, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 26, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.5NVDAV:N/AC:M/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.

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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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