CVE-2026-8896
MIR blocks and shortcodes <= 1.0.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
- State
- Published
- Severity
- 6.4 Medium
- Published
- Jun 24, 2026
- Updated
- Jun 30, 2026
- Reserved
- May 18, 2026
Description
The MIR blocks and shortcodes plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'title' attribute (and other attributes such as 'ready_animation_text') of the 'msc_stats' shortcode in versions up to, and including, 1.0.0. This is due to insufficient input sanitization and output escaping on user supplied shortcode attributes inside the msc_stats() rendering 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N | Wordfence |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
MIR blocks and shortcodesmirsoftware |
|
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d7d698be-fae6-4960-912a-1078ea407031?source=cve
- https://plugins.trac.wordpress.org/browser/mir-blocks-and-shortcodes/trunk/frontend-templates/function/msc-stats.php#L44
- https://plugins.trac.wordpress.org/browser/mir-blocks-and-shortcodes/trunk/frontend-templates/function/msc-stats.php#L22
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