How severe is CVE-2016-5191?

CVE-2016-5191 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-2016-5191 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-5191?

CVE-2016-5191 affects Google Chrome. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-5191?

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

When was CVE-2016-5191 published?

CVE-2016-5191 was published on 2016-12-18 and last updated on 2026-06-17.

CVE-2016-5191

CVE-2016-5191 is a medium-severity vulnerability in Google Chrome 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: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Google Chrome
Published: 2016-12-18
Last modified: 2026-06-17

Description

Bookmark handling in Google Chrome prior to 54.0.2840.59 for Windows, Mac, and Linux; 54.0.2840.85 for Android had insufficient validation of supplied data, which allowed a remote attacker to inject arbitrary scripts or HTML (UXSS) via crafted HTML pages, as demonstrated by an interpretation conflict between userinfo and scheme in an http://javascript:[email protected] URL.

Frequently asked questions

What is CVE-2016-5191?: Bookmark handling in Google Chrome prior to 54.0.2840.59 for Windows, Mac, and Linux; 54.0.2840.85 for Android had insufficient validation of supplied data, which allowed a remote attacker to inject arbitrary scripts or HTML (UXSS) via crafted HTML pages, as demonstrated by an interpretation conflict between userinfo and scheme in an http://javascript:[email protected] URL.
How severe is CVE-2016-5191?: CVE-2016-5191 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-2016-5191 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-5191?: CVE-2016-5191 affects Google Chrome. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-5191?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-5191 published?: CVE-2016-5191 was published on 2016-12-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

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