How severe is CVE-2020-16254?

CVE-2020-16254 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-2020-16254 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-16254?

CVE-2020-16254 affects Chartkick Project Chartkick. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-16254?

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

When was CVE-2020-16254 published?

CVE-2020-16254 was published on 2020-08-05 and last updated on 2026-06-17.

CVE-2020-16254

CVE-2020-16254 is a medium-severity vulnerability in Chartkick Project Chartkick 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-74.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-74
Affected product: Chartkick Project Chartkick
Published: 2020-08-05
Last modified: 2026-06-17

Description

The Chartkick gem through 3.3.2 for Ruby allows Cascading Style Sheets (CSS) Injection (without attribute).

Frequently asked questions

What is CVE-2020-16254?: The Chartkick gem through 3.3.2 for Ruby allows Cascading Style Sheets (CSS) Injection (without attribute).
How severe is CVE-2020-16254?: CVE-2020-16254 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-2020-16254 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-16254?: CVE-2020-16254 affects Chartkick Project Chartkick. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-16254?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-16254 published?: CVE-2020-16254 was published on 2020-08-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:chartkick_project:chartkick:*:*:*:*:*:ruby:*:*

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CVE-2019-12732 — Medium (CVSS 4.7): The Chartkick gem through 3.1.0 for Ruby allows XSS.

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