How severe is CVE-2018-11758?

CVE-2018-11758 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2018-11758 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11758?

CVE-2018-11758 primarily affects Apache Cayenne. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-11758?

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-2018-11758 published?

CVE-2018-11758 was published on 2018-08-22 and last updated on 2026-06-17.

CVE-2018-11758

CVE-2018-11758 is a high-severity vulnerability in Apache Cayenne with a CVSS 3.x base score of 8.1. 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 8.1)
CVSS v2: 5.8
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Apache Cayenne
Published: 2018-08-22
Last modified: 2026-06-17

Description

This affects Apache Cayenne 4.1.M1, 3.2.M1, 4.0.M2 to 4.0.M5, 4.0.B1, 4.0.B2, 4.0.RC1, 3.1, 3.1.1, 3.1.2. CayenneModeler is a desktop GUI tool shipped with Apache Cayenne and intended for editing Cayenne ORM models stored as XML files. If an attacker tricks a user of CayenneModeler into opening a malicious XML file, the attacker will be able to instruct the XML parser built into CayenneModeler to transfer files from a local machine to a remote machine controlled by the attacker. The cause of the issue is XML parser processing XML External Entity (XXE) declarations included in XML. The vulnerability is addressed in Cayenne by disabling XXE processing in all operations that require XML parsing.

Frequently asked questions

What is CVE-2018-11758?: This affects Apache Cayenne 4.1.M1, 3.2.M1, 4.0.M2 to 4.0.M5, 4.0.B1, 4.0.B2, 4.0.RC1, 3.1, 3.1.1, 3.1.2. CayenneModeler is a desktop GUI tool shipped with Apache Cayenne and intended for editing Cayenne ORM models stored as XML files. If an attacker tricks a user of CayenneModeler into opening a malicious XML file, the attacker will be able to instruct the XML parser built into CayenneModeler to transfer files from a local machine to a remote machine controlled by the attacker. The cause of the issue is XML parser processing XML External Entity (XXE) declarations included in XML. The vulnerability is addressed in Cayenne by disabling XXE processing in all operations that require XML parsing.
How severe is CVE-2018-11758?: CVE-2018-11758 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2018-11758 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11758?: CVE-2018-11758 primarily affects Apache Cayenne. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-11758?: 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-2018-11758 published?: CVE-2018-11758 was published on 2018-08-22 and last updated on 2026-06-17.

References

Affected products (12)

cpe:2.3:a:apache:cayenne:*:*:*:*:*:*:*:*
cpe:2.3:a:apache:cayenne:3.1.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:cayenne:3.1.2:*:*:*:*:*:*:*
cpe:2.3:a:apache:cayenne:3.2:milestone1:*:*:*:*:*:*
cpe:2.3:a:apache:cayenne:4.0:beta1:*:*:*:*:*:*
cpe:2.3:a:apache:cayenne:4.0:beta2:*:*:*:*:*:*
cpe:2.3:a:apache:cayenne:4.0:milestone2:*:*:*:*:*:*
cpe:2.3:a:apache:cayenne:4.0:milestone3:*:*:*:*:*:*
cpe:2.3:a:apache:cayenne:4.0:milestone4:*:*:*:*:*:*
cpe:2.3:a:apache:cayenne:4.0:milestone5:*:*:*:*:*:*
cpe:2.3:a:apache:cayenne:4.0:rc1:*:*:*:*:*:*
cpe:2.3:a:apache:cayenne:4.1:milestone1:*:*:*:*:*:*

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