How severe is CVE-2018-17876?

CVE-2018-17876 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-2018-17876 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-17876?

CVE-2018-17876 affects Web-feet Coaster Cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-17876?

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

When was CVE-2018-17876 published?

CVE-2018-17876 was published on 2018-10-04 and last updated on 2026-06-17.

CVE-2018-17876

CVE-2018-17876 is a medium-severity vulnerability in Web-feet Coaster Cms 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% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Web-feet Coaster Cms
Published: 2018-10-04
Last modified: 2026-06-17

Description

A Stored XSS vulnerability has been discovered in the v5.5.0 version of the Coaster CMS product.

Frequently asked questions

What is CVE-2018-17876?: A Stored XSS vulnerability has been discovered in the v5.5.0 version of the Coaster CMS product.
How severe is CVE-2018-17876?: CVE-2018-17876 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-2018-17876 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-17876?: CVE-2018-17876 affects Web-feet Coaster Cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-17876?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-17876 published?: CVE-2018-17876 was published on 2018-10-04 and last updated on 2026-06-17.

References

http://packetstormsecurity.com/files/149647/Coaster-CMS-5.5.0-Cross-Site-Scripting.html

Affected products (1)

cpe:2.3:a:web-feet:coaster_cms:5.5.0:*:*:*:*:*:*:*

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