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 up to version 5.2.0. It arises from rendering Spring Boot starter wizard dependency tooltips in an embedded browser with JavaScript enabled, where untrusted Initializr endpoints can inject arbitrary scripts. 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 versions 5.2.0 and earlier render Spring Boot starter wizard dependency tooltips inside a native embedded SWT Browser with JavaScript enabled. If the Initializr endpoints used by the wizard are untrusted or compromised, an attacker can inject arbitrary JavaScript that executes when a developer hovers over a dependency checkbox. This results in cross-site scripting within the embedded browser context. The vulnerability does not allow full code execution but can cause UI spoofing and outbound network requests from the IDE environment.
Potential Impact
The vulnerability allows an attacker controlling or compromising Initializr endpoints to execute arbitrary scripts in the embedded browser of Spring Tools for Eclipse. This can lead to UI spoofing inside the IDE and outbound network beaconing, potentially leaking information or misleading the user. 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, users should avoid using untrusted or compromised Initializr endpoints with the Spring Boot starter wizard in Spring Tools for Eclipse. Consider restricting network access or validating Initializr endpoints to reduce risk.
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 up to version 5.2.0. It arises from rendering Spring Boot starter wizard dependency tooltips in an embedded browser with JavaScript enabled, where untrusted Initializr endpoints can inject arbitrary scripts. 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
Spring
Spring Tools for Eclipse
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Spring Tools for Eclipse versions 5.2.0 and earlier render Spring Boot starter wizard dependency tooltips inside a native embedded SWT Browser with JavaScript enabled. If the Initializr endpoints used by the wizard are untrusted or compromised, an attacker can inject arbitrary JavaScript that executes when a developer hovers over a dependency checkbox. This results in cross-site scripting within the embedded browser context. The vulnerability does not allow full code execution but can cause UI spoofing and outbound network requests from the IDE environment.
Potential Impact
The vulnerability allows an attacker controlling or compromising Initializr endpoints to execute arbitrary scripts in the embedded browser of Spring Tools for Eclipse. This can lead to UI spoofing inside the IDE and outbound network beaconing, potentially leaking information or misleading the user. 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, users should avoid using untrusted or compromised Initializr endpoints with the Spring Boot starter wizard in Spring Tools for Eclipse. Consider restricting network access or validating Initializr endpoints to reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- vmware
- Date Reserved
- 2026-07-04T18:14:10.167Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a6aee0c9c2644c7f8a7f06d
Added to database: 07/30/2026, 06:24:12 UTC
Last enriched: 08/06/2026, 17:58:24 UTC
Last updated: 09/10/2026, 19:57:58 UTC
Views: 61
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.