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CVE-2013-6407

27
FAUCET Score

CVE-2013-6407 describes an XML External Entity (XXE) vulnerability in Apache Solr versions prior to 4.1. This flaw allows remote attackers to impact the system by submitting specially crafted XML data containing external entity declarations and references to the UpdateRequestHandler. With a CVSS score of 6.4, this vulnerability is of medium severity, indicating it can be exploited remotely with low complexity to achieve partial confidentiality and availability impacts. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.0.0CPE matchmatch criteria
cpe:2.3:a:apache:solr:*:*:*:*:*:*:*:*
3.6.0CPE matchmatch criteria
cpe:2.3:a:apache:solr:3.6.0:*:*:*:*:*:*:*
3.6.1CPE matchmatch criteria
cpe:2.3:a:apache:solr:3.6.1:*:*:*:*:*:*:*
3.6.2CPE matchmatch criteria
cpe:2.3:a:apache:solr:3.6.2:*:*:*:*:*:*:*
4.0.0CPE matchmatch criteria
cpe:2.3:a:apache:solr:4.0.0:alpha:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.4MEDIUM

AV:N/AC:L/Au:N/C:P/I:N/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
11.40%
Probability of exploitation in next 30 days
EPSS Percentile
95.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1140 is in the 95th percentile among its peer group of 23,723 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

mavenpatch availablevia ghsa
Product: org.apache.solr:solr-coreFixed in: 4.1.0
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Data Grid 6.2Fixed in: solr
View patch
redhatpatch availablevia redhat_api
Product: Red Hat JBoss Web Framework Kit 2.4Fixed in: solr
View patch

Vendor Advisories (2)

mavenGHSA-998j-j6v9-5846medium

Apache Solr UpdateRequestHandler for XML resolves XML External Entities

May 17, 2022
redhatCVE-2013-6407Moderate

Solr: XML eXternal Entity (XXE) flaw in XML and XSLT UpdateRequestHandler

Sep 26, 2012

References

rhn.redhat.com / errata/RHSA-2013-1844.html
rhn.redhat.com / errata/RHSA-2014-0029.html
secunia.com / advisories/55542
Vendor Advisory
secunia.com / advisories/59372
issues.apache.org / jira/browse/SOLR-3895
Patch
svn.apache.org / viewvc/lucene/dev/branches/branch_4x/solr/CHANGES.txt
openwall.com / lists/oss-security/2013/11/29/2