PT-2026-22080 · WordPress · Wpgraphql

Nekros1Xx · CVE-2026-27938 · Published 2026-02-26 · Updated 2026-03-03

Positive Technologies (AI Summary)

CVSS v3.1

7.7

High

Base vector

AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N

Name of the Vulnerable Software and Affected Versions WPGraphQL versions prior to 2.9.1

Description The WPGraphQL software includes a GraphQL API for WordPress sites. A GitHub Actions workflow file (release.yml) in the wp-graphql/wp-graphql repository is susceptible to OS command injection. This occurs through the direct use of ${{ github.event.pull request.body }} within a run: shell block. When a pull request is merged from the develop branch to the master branch, the content of the pull request body is directly inserted into a shell command, potentially enabling arbitrary command execution on the Actions runner.

Recommendations Update to version 2.9.1 or later.

Exploit

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2026-27938

GHSA-4Q9F-MJXF-RX7X

Affected Products

Wpgraphql

References · 8

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27938.json · Exploit
• https://osv.dev/vulnerability/CVE-2026-27938 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-27938 · Security Note
• https://github.com/wp-graphql/wp-graphql/commit/de0c2d590593f1099546ad517106e454a498bc58 · Note
• https://github.com/wp-graphql/wp-graphql/security/advisories/GHSA-4q9f-mjxf-rx7x · Note
• https://twitter.com/VulmonFeeds/status/2026988342596833417 · Twitter Post
• https://twitter.com/CVEnew/status/2027004227965394954 · Twitter Post
• https://twitter.com/cracbot/status/2028787635817484354 · Twitter Post