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CVE-2017-5661

28
FAUCET Score

CVE-2017-5661 is a high-severity XML External Entity (XXE) vulnerability affecting Apache FOP versions prior to 2.2. It allows authenticated attackers to disclose arbitrary files on the server's filesystem by submitting specially crafted SVG files, potentially leading to full server compromise if running as root, or denial of service. The vulnerability has a CVSS score of 7.3 (HIGH), indicating a network-based attack with low complexity and high impact on confidentiality and availability. There is currently no public exploit code available (Metasploit, Nuclei, ExploitDB), and there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.1CPE matchmatch criteria
cpe:2.3:a:apache:formatting_objects_processor:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.3HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.1
Impact Score
5.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.96%
Probability of exploitation in next 30 days
EPSS Percentile
85.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0296 is in the 96th percentile among its peer group of 890 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

mavenpatch availablevia ghsa
Product: org.apache.xmlgraphics:fopFixed in: 2.2
redhatno patchvia redhat_api
Product: Red Hat Virtualization 4Fixed in: fop
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: fop
redhatend of lifevia redhat_api
Product: Red Hat JBoss Fuse Service Works 6Fixed in: fop
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-maven33-fop
redhatend of lifevia redhat_api
Product: Red Hat JBoss Fuse 6Fixed in: camel
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: fop

Vendor Advisories (2)

mavenGHSA-5hg8-r9vq-gjqphigh

Improper Restriction of XML External Entity Reference in Apache FOP

May 13, 2022
redhatCVE-2017-5661Moderate

fop: XML external entity processing vulnerability

Apr 18, 2017

References

tenable.com / security/tns-2021-14
xmlgraphics.apache.org / security.html
PatchVendor Advisory
debian.org / security/2017/dsa-3864
securityfocus.com / bid/97947