CVE-2018-19858: PrinceXML, versions 10 and below, is vulnerable to XXE due to the lack of protection against external entities

Q: How do I fix CVE-2018-19858?

princexml: upgrade to newer than 10.0. Exact commands for each OS are on this page.

Q: Is CVE-2018-19858 being exploited?

CVE-2018-19858 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2018-19858 affect?

CVE-2018-19858 affects princexml. Severity is high (CVSS 8.6). PrinceXML, versions 10 and below, is vulnerable to XXE due to the lack of protection against external entities. If an attacker passes HTML referencing an XML file (e.g., in an IFRAME element), PrinceXML will fetch the XML and parse it, thus

Q: How urgent is CVE-2018-19858?

Priority 61/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 8.6REMOTEUPGRADE

CVE-2018-19858 is a high-severity flaw (CVSS 8.6) affecting princexml. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PrinceXML, versions 10 and below, is vulnerable to XXE due to the lack of protection against external entities. If an attacker passes HTML referencing an XML file (e.g., in an IFRAME element), PrinceXML will fetch the XML and parse it, thus giving an attacker file-read access and full-fledged SSRF.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.6 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.6% (top 15%)
CISA exploited list	No
Weakness	CWE-611
Published	2019-01-30
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: princexml

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-01-30 15:29 UTCPublished CVE record published
2026-06-17 01:50 UTCUpdated Record last modified

princexml princexml UPGRADE

Affected: <= 10.0

Fixed in: newer than 10.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy princexml || rpm -q princexml || princexml --version

2. UPGRADE to newer than 10.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade princexml

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade princexml

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-19858?

princexml: upgrade to newer than 10.0. Exact commands for each OS are on this page.

Is CVE-2018-19858 being exploited?

CVE-2018-19858 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-19858 affect?

CVE-2018-19858 affects princexml. Severity is high (CVSS 8.6). PrinceXML, versions 10 and below, is vulnerable to XXE due to the lack of protection against external entities. If an attacker passes HTML referencing an XML file (e.g., in an IFRAME element), PrinceXML will fetch the XML and parse it, thus

How urgent is CVE-2018-19858?

Priority 61/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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