CVE-2026-8042
Stored XSS in WordPress Github Shortcode Plugin
Publication date: 2026-05-27
Last updated on: 2026-05-27
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| github | shortcode_plugin | to 0.1 (inc) |
| github | shortcode | to 0.1 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-79 | The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
The Github Shortcode plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in the 'repo' shortcode attribute of the 'github' shortcode. This vulnerability exists in all versions up to and including 0.1 due to insufficient input sanitization and output escaping.
Authenticated attackers with Contributor-level access or higher can exploit this flaw to inject arbitrary web scripts into pages. These scripts will execute whenever any user accesses the injected page.
How can this vulnerability impact me? :
This vulnerability allows attackers with certain access privileges to inject malicious scripts into web pages, which can then execute in the browsers of users who visit those pages.
- It can lead to theft of user credentials or session tokens.
- It may enable attackers to perform actions on behalf of users without their consent.
- It can damage the trustworthiness and integrity of the affected website.