How severe is CVE-2016-10547?

CVE-2016-10547 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-2016-10547 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-10547?

CVE-2016-10547 affects Mozilla Nunjucks. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-10547?

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

When was CVE-2016-10547 published?

CVE-2016-10547 was published on 2018-05-31 and last updated on 2026-06-17.

CVE-2016-10547

CVE-2016-10547 is a medium-severity vulnerability in Mozilla Nunjucks 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% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Mozilla Nunjucks
Published: 2018-05-31
Last modified: 2026-06-17

Description

Nunjucks is a full featured templating engine for JavaScript. Versions 2.4.2 and lower have a cross site scripting (XSS) vulnerability in autoescape mode. In autoescape mode, all template vars should automatically be escaped. By using an array for the keys, such as `name[]=<script>alert(1)</script>`, it is possible to bypass autoescaping and inject content into the DOM.

Frequently asked questions

What is CVE-2016-10547?: Nunjucks is a full featured templating engine for JavaScript. Versions 2.4.2 and lower have a cross site scripting (XSS) vulnerability in autoescape mode. In autoescape mode, all template vars should automatically be escaped. By using an array for the keys, such as `name[]=<script>alert(1)</script>`, it is possible to bypass autoescaping and inject content into the DOM.
How severe is CVE-2016-10547?: CVE-2016-10547 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-2016-10547 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-10547?: CVE-2016-10547 affects Mozilla Nunjucks. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-10547?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-10547 published?: CVE-2016-10547 was published on 2018-05-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mozilla:nunjucks:*:*:*:*:*:*:*:*

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