Nunjucks is a full featured templating engine for JavaScript
Published May 31, 2018
6.1
MEDIUMCVSS 3.0
EPSS 1.44%
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.
Affected products
-
- Version <=2.4.2StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| HackerOne | Nunjucks Node Module | n/a |
|
No data.
No Red Hat product state for this CVE.
nunjucks
npm
Introduced 0 Fixed 2.4.3
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | nunjucks | 0 | 2.4.3 |
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
AV:N/AC:M/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.44% (0.01440) | 72.23th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.44% (0.01440) | 69.64th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.40% (0.00395) | 58.29th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.16% (0.00159) | 53.80th | v3 (v2023.03.01) |
| Oct 13, 2023 | 0.16% (0.00159) | 52.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.16% (0.00157) | 50.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Sep 2, 2022 | 0.95% (0.00954) | 34.50th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
References (6)
- https://github.com/advisories/GHSA-f7ph-p5rv-phw2 Advisory
- https://github.com/matt-/nunjucks_test x_refsource_MISCExploitThird Party Advisory
- https://github.com/mozilla/nunjucks/issues/835 x_refsource_MISCExploitThird Party Advisory
- https://nodesecurity.io/advisories/147 x_refsource_MISCExploitThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-10547
- https://www.npmjs.com/advisories/147
| Link | Providers | Tags |
|---|---|---|
| https://github.com/advisories/GHSA-f7ph-p5rv-phw2 | Advisory | |
| https://github.com/matt-/nunjucks_test | x_refsource_MISCExploitThird Party Advisory | |
| https://github.com/mozilla/nunjucks/issues/835 | x_refsource_MISCExploitThird Party Advisory | |
| https://nodesecurity.io/advisories/147 | x_refsource_MISCExploitThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-10547 | ||
| https://www.npmjs.com/advisories/147 |
Change history (0)
No recorded changes yet.