How severe is CVE-2018-19858?

CVE-2018-19858 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-19858 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-19858?

CVE-2018-19858 affects Princexml. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-19858?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-19858 published?

CVE-2018-19858 was published on 2019-01-30 and last updated on 2026-06-17.

CVE-2018-19858

CVE-2018-19858 is a high-severity vulnerability in Princexml with a CVSS 3.x base score of 8.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-611.

Key facts

Severity: High (CVSS 3.x base score 8.6)
CVSS v2: 5.0
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Princexml
Published: 2019-01-30
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2018-19858?: 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.
How severe is CVE-2018-19858?: CVE-2018-19858 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-19858 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-19858?: CVE-2018-19858 affects Princexml. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-19858?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-19858 published?: CVE-2018-19858 was published on 2019-01-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:princexml:princexml:*:*:*:*:*:*:*:*

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