CVE-2022-39357

criticalpriority · track · 39EPSS 0.014 · 72 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.37% (72nd) EPSS

CVSS 9.8 · critical

Is it mine?

7 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

Winter is a free, open-source content management system based on the Laravel PHP framework. The Snowboard framework in versions 1.1.8, 1.1.9, and 1.2.0 is vulnerable to prototype pollution in the main Snowboard class as well as its plugin loader. The 1.0 branch of Winter is not affected, as it does not contain the Snowboard framework. This issue has been patched in v1.1.10 and v1.2.1. As a workaround, one may avoid this issue by following some common security practices for JavaScript, including implementing a content security policy and auditing scripts.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.1–9.8

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · security-advisories@github.comexploitability 2.2 · impact 5.9

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-1321USprimaryCWE-1321US

affected products (7)

Products and version ranges known to be affected.

wintercms winter≤ = 1.2.0enisa_euvdEU
wintercms winter1.1.8, → 1.1.10enisa_euvdEU
wintercms winter= 1.1.8nvdUScpe:2.3:a:wintercms:winter:*:*:*:*:*:*:*:*
wintercms winter= 1.1.9nvdUScpe:2.3:a:wintercms:winter:*:*:*:*:*:*:*:*
wintercms winter= 1.2.0nvdUScpe:2.3:a:wintercms:winter:*:*:*:*:*:*:*:*
Packagist wintercms/winter1.1.8 → 1.1.10osvUSpkg:composer/wintercms/winter
Packagist wintercms/winter1.2.0 → 1.2.1osvUSpkg:composer/wintercms/winter

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-3fh5-q6fg-w28qPrototype pollution in Snowboard framework2022-10-27ghsa · osvUS
### Impact The Snowboard framework in affected versions is vulnerable to prototype pollution in the main Snowboard class as well as its plugin loader. ### Patches This issue has been patched in https://github.com/wintercms/winter/commit/2a13faf99972e84c9661258f16c4750fa99d29a1 (for 1.2) and https://github.com/wintercms/winter/commit/bce4b59584abf961e9400af3d7a4fd7638e26c7f (for 1.1) and is available with Winter v1.1.10 and v1.2.1. ### Workarounds If you have not yet upgraded, or are using the 1.1 branch of Winter (1.1.8 or above), you can avoid this issue by following some common security practices for JavaScript, including implementing a [content security policy](https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP) and auditing your scripts. The 1.0 branch of Winter is not affected, as it does not contain the Snowboard framework. ### For more information If you have any questions or comments about this advisory: - Email us at [hello@wintercms.com](mailto:hello@wintercms.com)

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2022-10-26modified 2026-06-17

related (708)

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+703 more

references (16)

External citations — patches, advisories, analysis.

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