How severe is CVE-2018-11650?

CVE-2018-11650 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-2018-11650 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-2018-11650?

CVE-2018-11650 affects Graylog. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-11650?

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

When was CVE-2018-11650 published?

CVE-2018-11650 was published on 2018-06-01 and last updated on 2026-06-17.

CVE-2018-11650

CVE-2018-11650 is a medium-severity vulnerability in Graylog 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: Graylog
Published: 2018-06-01
Last modified: 2026-06-17

Description

Graylog before v2.4.4 has an XSS security issue with unescaped text in notifications, related to toastr and util/UserNotification.js.

Frequently asked questions

What is CVE-2018-11650?: Graylog before v2.4.4 has an XSS security issue with unescaped text in notifications, related to toastr and util/UserNotification.js.
How severe is CVE-2018-11650?: CVE-2018-11650 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-2018-11650 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-2018-11650?: CVE-2018-11650 affects Graylog. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-11650?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-11650 published?: CVE-2018-11650 was published on 2018-06-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:graylog:graylog:*:*:*:*:*:*:*:*

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