The Github Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'repo' shortcode attribute in the 'github' shortcode in all versions up to, and including, 0.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

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Fixes

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History

Wed, 27 May 2026 11:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 27 May 2026 10:30:00 +0000

Type Values Removed Values Added
First Time appeared Octalmage
Octalmage github Shortcode
Wordpress
Wordpress wordpress
Vendors & Products Octalmage
Octalmage github Shortcode
Wordpress
Wordpress wordpress

Wed, 27 May 2026 08:00:00 +0000

Type Values Removed Values Added
Description The Github Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'repo' shortcode attribute in the 'github' shortcode in all versions up to, and including, 0.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Title Github Shortcode <= 0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-05-27T10:27:37.597Z

Reserved: 2026-05-06T16:19:42.426Z

Link: CVE-2026-8042

cve-icon Vulnrichment

Updated: 2026-05-27T10:27:32.622Z

cve-icon NVD

Status : Received

Published: 2026-05-27T08:16:45.190

Modified: 2026-05-27T08:16:45.190

Link: CVE-2026-8042

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-27T11:00:13Z

Weaknesses