CVE-2026-30139: Silverpeas core war Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-vmj7-7xmm-4349
Share
CVSS 6.1
CWE-79
Published
Advisory Summary

CVE-2026-30139 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Silverpeas core war libraries in the Maven ecosystem. The issue involves silverpeas core has a reflected cross-site scripting vulnerability. Remediation is available in the latest vendor maintenance releases.

CVE-2026-30139 at a Glance

CVE Identifier CVE-2026-30139
GHSA Identifier GHSA-vmj7-7xmm-4349
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Silverpeas core war
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2026-30139

To remediate this vulnerability, upgrade all affected Silverpeas core war dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.silverpeas.core:silverpeas-core-war fixed: Latest secure release 
<dependency>
    <groupId>org.silverpeas.core</groupId>
    <artifactId>silverpeas-core-war</artifactId>
    <version>Latest secure release</version>
</dependency>
org.silverpeas.core:silverpeas-core-web fixed: Latest secure release 
<dependency>
    <groupId>org.silverpeas.core</groupId>
    <artifactId>silverpeas-core-web</artifactId>
    <version>Latest secure release</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.silverpeas.core

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-30139, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.silverpeas.core

Analyze the terminal output to locate any version of Silverpeas core war in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.silverpeas.core command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Silverpeas core war, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A reflected cross-site scripting (XSS) vulnerability in the AdvancedSearch functionality of Silverpeas Core allows attackers to execute arbitrary JavaScript in the context of a user's browser via crafted input.

CVE-2026-30139 Affected Silverpeas core war Versions

2 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
org.silverpeas.core:silverpeas-core-war
maven/org.silverpeas.core/silverpeas-core-war
Maven
≤ 6.4-feature13197
org.silverpeas.core:silverpeas-core-web
maven/org.silverpeas.core/silverpeas-core-web
Maven
≤ 6.4-feature13197

References

NVD — CVE-2026-30139 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-30139
Silverpeas core war Source Repository REPOSITORY
https://github.com/Silverpeas/Silverpeas-Core/pull/1421
Security Fix Commit FIX COMMIT
https://github.com/Silverpeas/Silverpeas-Core/commit/7b4bacc80d11ab60423bdc6eb69e0176e9c27fc7
Silverpeas core war Source Repository REPOSITORY
https://github.com/Silverpeas/Silverpeas-Core
Silverpeas core war Source Repository REPOSITORY
https://github.com/bodd1593/CVEs-huyle/tree/main/CVE-2026-30139

Frequently Asked Questions

What is CVE-2026-30139?
CVE-2026-30139 is a security vulnerability in Silverpeas core war involving Silverpeas Core has a reflected cross-site scripting vulnerability under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Silverpeas core war versions are affected?
Affected versions include releases prior to current release patches across affected packages: org.silverpeas.core:silverpeas-core-war, org.silverpeas.core:silverpeas-core-web.
What version fixes CVE-2026-30139?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is silverpeas-core-war affected?
Yes, org.silverpeas.core:silverpeas-core-war is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
Is silverpeas-core-web affected?
Yes, org.silverpeas.core:silverpeas-core-web is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2026-30139?
CVE-2026-30139 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2026-30139?
CVE-2026-30139 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check Maven dependencies for CVE-2026-30139?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.silverpeas.core'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-vmj7-7xmm-4349",
  "modified" : "2026-04-30T17:47:46Z",
  "published" : "2026-04-22T18:31:44Z",
  "aliases" : [ "CVE-2026-30139" ],
  "summary" : "Silverpeas Core has a reflected cross-site scripting vulnerability",
  "details" : "A reflected cross-site scripting (XSS) vulnerability in the AdvancedSearch functionality of Silverpeas Core allows attackers to execute arbitrary JavaScript in the context of a user's browser via crafted input.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.silverpeas.core:silverpeas-core-war"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "6.4-feature13197"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.silverpeas.core:silverpeas-core-web"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "6.4-feature13197"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-30139"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Silverpeas/Silverpeas-Core/pull/1421"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Silverpeas/Silverpeas-Core/commit/7b4bacc80d11ab60423bdc6eb69e0176e9c27fc7"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/Silverpeas/Silverpeas-Core"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/bodd1593/CVEs-huyle/tree/main/CVE-2026-30139"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-30T17:47:45Z",
    "nvd_published_at" : "2026-04-22T16:16:53Z"
  }
}