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Vulnerability · Published Mar 23, 2026 · Assigned by GitHub_M

CVE-2026-27131Sprig Plugin for Craft CMS potentially discloses sensitive information via Sprig Playground

Medium 5.5

In plain English

A medium-severity information exposure in craft-sprig from putyourlightson. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.3%top 81.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

The Sprig Plugin for Craft CMS is a reactive Twig component framework for Craft CMS. Starting in version 2.0.0 and prior to versions 2.15.2 and 3.15.2, admin users, and users with explicit permission to access the Sprig Playground, could potentially expose the security key, credentials, and other sensitive configuration data, in addition to running the `hashData()` signing function. This issue was mitigated in versions 3.15.2 and 2.15.2 by disabling access to the Sprig Playground entirely when `devMode` is disabled, by default. It is possible to override this behavior using a new `enablePlaygroundWhenDevModeDisabled` that defaults to `false`.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Packagistputyourlightson/craft-sprig2.15.2GHSA-m59h-42jf-cphr
Packagistputyourlightson/craft-sprig3.7.2GHSA-m59h-42jf-cphr

Affected products (as reported)

VendorProductVersions
putyourlightson craft-sprig >= 3.0.0, < 3.15.2>= 2.0.0, < 2.15.2

Weakness: CWE-200, CWE-489 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N

References