CVE-2026-8883
Description
The Global Body Mass Index Calculator plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'gbmicalc' shortcode in versions up to, and including, 1.2. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes in the GBMI_Calc_Widget::widget() function. Shortcode attributes are extracted directly into local variables via @extract($args) and then echoed unescaped into an HTML style attribute (height/width) and HTML body context (title), allowing attribute-breakout payloads. 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.
Affected products
2<=1.2+ 1 more
- (no CPE)range: <=1.2
- (no CPE)range: <=1.2
Patches
0No patches discovered yet.
Vulnerability mechanics
No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.
References
5- plugins.trac.wordpress.org/browser/global-body-mass-index-calculator/tags/1.2/gbmicalc.phpnvd
- plugins.trac.wordpress.org/browser/global-body-mass-index-calculator/tags/1.2/gbmicalc.phpnvd
- plugins.trac.wordpress.org/browser/global-body-mass-index-calculator/tags/1.2/gbmicalc.phpnvd
- plugins.trac.wordpress.org/browser/global-body-mass-index-calculator/tags/1.2/gbmicalc.phpnvd
- www.wordfence.com/threat-intel/vulnerabilities/id/06804bed-17c5-413c-a31b-f6f039015e26nvd
News mentions
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