Description
Squirrelly is a template engine implemented in JavaScript that works out of the box with ExpressJS. Squirrelly mixes pure template data with engine configuration options through the Express render API. By overwriting internal configuration options remote code execution may be triggered in downstream applications. This issue is fixed in version 9.0.0. For complete details refer to the referenced GHSL-2021-023.
Metrics
CVSS 3.1 8.8/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| squirrellyjs | squirrelly | >= 9.0.0, < 9.0.0 |
References
- https://github.com/squirrellyjs/squirrelly/commit/c12418a026f73df645ba927fd29358efe02fed1e
- https://github.com/squirrellyjs/squirrelly/commit/dca7a1e7ee91d8a6ffffb655f3f15647486db9da
- https://github.com/squirrellyjs/squirrelly/pull/254
- https://securitylab.github.com/advisories/GHSL-2021-023-squirrelly/Exploit, Third Party Advisory
- https://github.com/squirrellyjs/squirrelly/commit/c12418a026f73df645ba927fd29358efe02fed1e
- https://github.com/squirrellyjs/squirrelly/commit/dca7a1e7ee91d8a6ffffb655f3f15647486db9da
- https://github.com/squirrellyjs/squirrelly/pull/254
- https://securitylab.github.com/advisories/GHSL-2021-023-squirrelly/Exploit, Third Party Advisory
Timeline
- Published
- May 14, 2021
- Last modified
- Jun 17, 2026
- NVD status
- Modified