How severe is CVE-2018-11117?

CVE-2018-11117 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-11117 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11117?

CVE-2018-11117 primarily affects Ilias. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-11117?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-11117 published?

CVE-2018-11117 was published on 2018-05-17 and last updated on 2026-06-17.

CVE-2018-11117

CVE-2018-11117 is a medium-severity vulnerability in Ilias with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Ilias
Published: 2018-05-17
Last modified: 2026-06-17

Description

Services/Feeds/classes/class.ilExternalFeedItem.php in ILIAS 5.1.x, 5.2.x, and 5.3.x before 5.3.5 has XSS via a link attribute.

Frequently asked questions

What is CVE-2018-11117?: Services/Feeds/classes/class.ilExternalFeedItem.php in ILIAS 5.1.x, 5.2.x, and 5.3.x before 5.3.5 has XSS via a link attribute.
How severe is CVE-2018-11117?: CVE-2018-11117 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-11117 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11117?: CVE-2018-11117 primarily affects Ilias. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-11117?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-11117 published?: CVE-2018-11117 was published on 2018-05-17 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:a:ilias:ilias:*:*:*:*:*:*:*:*
cpe:2.3:a:ilias:ilias:5.1.0:beta1:*:*:*:*:*:*
cpe:2.3:a:ilias:ilias:5.2.0:beta1:*:*:*:*:*:*
cpe:2.3:a:ilias:ilias:5.2.0:beta2:*:*:*:*:*:*
cpe:2.3:a:ilias:ilias:5.2.0:beta3:*:*:*:*:*:*

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