CVE-2026-59328: CWE-79 Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) in Spring Spring Tools for Eclipse
CVE-2026-59328 is a cross-site scripting (XSS) vulnerability in Spring Tools for Eclipse versions 5.2.0 and earlier. The issue arises because the Spring Boot starter wizard renders dependency tooltips in an embedded browser with JavaScript enabled, allowing arbitrary script execution if untrusted Initializr endpoints are used. The impact is limited to UI spoofing within the IDE and outbound network beaconing, without full code execution.
AI Analysis
Technical Summary
Spring Tools for Eclipse (<=5.2.0) uses a native embedded SWT Browser with JavaScript enabled to render Spring Boot starter wizard dependency tooltips. If a developer uses compromised or untrusted Initializr endpoints, arbitrary JavaScript can execute inside the embedded browser when hovering over dependency checkboxes in the New Spring Starter Project wizard. This vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation, i.e., Cross-site Scripting). The impact is confined to in-IDE UI spoofing and outbound network beaconing, not allowing full code execution on the host system.
Potential Impact
An attacker controlling or compromising Initializr endpoints can cause arbitrary script execution within the embedded browser context of the IDE. This can lead to UI spoofing inside the IDE and outbound network beaconing, potentially leaking information or misleading the developer. There is no indication of full code execution or system compromise from this vulnerability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid using untrusted or compromised Initializr endpoints with Spring Tools for Eclipse. Exercise caution when interacting with dependency tooltips in the New Spring Starter Project wizard.
CVE-2026-59328: CWE-79 Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) in Spring Spring Tools for Eclipse
Description
CVE-2026-59328 is a cross-site scripting (XSS) vulnerability in Spring Tools for Eclipse versions 5.2.0 and earlier. The issue arises because the Spring Boot starter wizard renders dependency tooltips in an embedded browser with JavaScript enabled, allowing arbitrary script execution if untrusted Initializr endpoints are used. The impact is limited to UI spoofing within the IDE and outbound network beaconing, without full code execution.
CVSS v3.1
Score 4.2medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Spring Tools for Eclipse (<=5.2.0) uses a native embedded SWT Browser with JavaScript enabled to render Spring Boot starter wizard dependency tooltips. If a developer uses compromised or untrusted Initializr endpoints, arbitrary JavaScript can execute inside the embedded browser when hovering over dependency checkboxes in the New Spring Starter Project wizard. This vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation, i.e., Cross-site Scripting). The impact is confined to in-IDE UI spoofing and outbound network beaconing, not allowing full code execution on the host system.
Potential Impact
An attacker controlling or compromising Initializr endpoints can cause arbitrary script execution within the embedded browser context of the IDE. This can lead to UI spoofing inside the IDE and outbound network beaconing, potentially leaking information or misleading the developer. There is no indication of full code execution or system compromise from this vulnerability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid using untrusted or compromised Initializr endpoints with Spring Tools for Eclipse. Exercise caution when interacting with dependency tooltips in the New Spring Starter Project wizard.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- vmware
- Date Reserved
- 2026-07-04T18:14:10.167Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a6aee0c9c2644c7f8a7f06d
Added to database: 07/30/2026, 06:24:12 UTC
Last enriched: 07/30/2026, 06:38:32 UTC
Last updated: 07/30/2026, 09:29:18 UTC
Views: 7
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