The Easy Prism Syntax Highlighter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'code' (and 'c') shortcode in versions up to, and including, 1.0.2. This is due to insufficient input sanitization and output escaping on user supplied shortcode attributes in the shortcode() function, which concatenates the first positional attribute directly into the class attribute of the generated <pre>/<code> HTML without calling esc_attr() or any other escaping function. 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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Affected Vendors & Products
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History
Wed, 27 May 2026 11:15:00 +0000
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ssvc
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Wed, 27 May 2026 10:30:00 +0000
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Cuamckuy
Cuamckuy easy Prism Syntax Highlighter Wordpress Wordpress wordpress |
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Cuamckuy
Cuamckuy easy Prism Syntax Highlighter Wordpress Wordpress wordpress |
Wed, 27 May 2026 06:30:00 +0000
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| Description | The Easy Prism Syntax Highlighter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'code' (and 'c') shortcode in versions up to, and including, 1.0.2. This is due to insufficient input sanitization and output escaping on user supplied shortcode attributes in the shortcode() function, which concatenates the first positional attribute directly into the class attribute of the generated <pre>/<code> HTML without calling esc_attr() or any other escaping function. 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 | Easy Prism Syntax Highlighter <= 1.0.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes | |
| Weaknesses | CWE-79 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Wordfence
Published: 2026-05-27T05:31:29.486Z
Updated: 2026-05-27T10:33:49.958Z
Reserved: 2026-05-18T20:26:39.696Z
Link: CVE-2026-8875
Updated: 2026-05-27T10:33:44.397Z
Status : Received
Published: 2026-05-27T07:16:17.010
Modified: 2026-05-27T07:16:17.010
Link: CVE-2026-8875
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