How severe is CVE-2018-20059?

CVE-2018-20059 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-20059 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-20059?

CVE-2018-20059 affects Pippo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-20059?

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

When was CVE-2018-20059 published?

CVE-2018-20059 was published on 2018-12-11 and last updated on 2026-06-17.

CVE-2018-20059

CVE-2018-20059 is a critical-severity vulnerability in Pippo with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Pippo
Published: 2018-12-11
Last modified: 2026-06-17

Description

jaxb/JaxbEngine.java in Pippo 1.11.0 allows XXE.

Frequently asked questions

What is CVE-2018-20059?: jaxb/JaxbEngine.java in Pippo 1.11.0 allows XXE.
How severe is CVE-2018-20059?: CVE-2018-20059 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-20059 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-20059?: CVE-2018-20059 affects Pippo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-20059?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-20059 published?: CVE-2018-20059 was published on 2018-12-11 and last updated on 2026-06-17.

References

https://github.com/pippo-java/pippo/issues/486

Affected products (1)

cpe:2.3:a:pippo:pippo:1.11.0:*:*:*:*:*:*:*

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