# CVE-2013-6407: Apache Solr UpdateRequestHandler for XML resolves XML External Entities

Source: https://junglewise.ai/threats/cve-2013-6407-apache-solr-updaterequesthandler-for-xml-resolves-xml-external  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-05-17  
License: CC BY 4.0 with a link back

CVE-2013-6407 · Severity: info · Published 2022-05-17

Apache Solr UpdateRequestHandler for XML resolves XML External Entities

Technologies: [org.apache.solr:solr-core (Maven)](https://junglewise.ai/threats/technologies/org-apache-solr-solr-core). Vendors: [Maven](https://junglewise.ai/threats/vendors/maven).

## Quick answers

**Is CVE-2013-6407 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2013-6407 being exploited in the wild.

**How severe is CVE-2013-6407?** Informational severity, published 17 May 2022.

**Which products and versions are affected?** org.apache.solr:solr-core (Maven) ECOSYSTEM:introduced=0,fixed=4.1.0.

**Is there a fix for CVE-2013-6407?** Yes. org.apache.solr:solr-core (Maven): upgrade to 4.1.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2013-6407?** Check whether you run org.apache.solr:solr-core (Maven) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- org.apache.solr:solr-core (Maven): upgrade to 4.1.0 or later

  ```sh
  # set org.apache.solr:solr-core to 4.1.0 in your pom.xml or build.gradle
  ```


## Affected products

- org.apache.solr:solr-core (Maven) ECOSYSTEM:introduced=0,fixed=4.1.0

## Identifiers

- CVE-2013-6407
- GHSA-998j-j6v9-5846

## Related threats

- [Apache Solr hardcoded credentials in Basic Authentication setup tool](https://junglewise.ai/threats/cve-2026-44825-apache-solr-hardcoded-credentials-in-basic-authentication-setup)
- [Apache Solr: Unauthorized bypass of certain "predefined permission" rules in the RuleBasedAuthorizationPlugin](https://junglewise.ai/threats/cve-2026-22022-apache-solr-unauthorized-bypass-of-certain-predefined-permission)
- [Apache Solr: Insufficient file-access checking in standalone core-creation requests](https://junglewise.ai/threats/cve-2026-22444-apache-solr-insufficient-file-access-checking-in-standalone-core)
- [Apache Solr vulnerable to Execution with Unnecessary Privileges](https://junglewise.ai/threats/cve-2025-24814-apache-solr-vulnerable-to-execution-with-unnecessary-privileges)
- [Apache Solr Relative Path Traversal vulnerability](https://junglewise.ai/threats/cve-2024-52012-apache-solr-relative-path-traversal-vulnerability)