CVE-2026-8883
No known patch is available for this vulnerability.
The affected plugin has been removed from the WordPress.org directory, and no patched version is being distributed through the official directory. If you have the affected software installed, you should uninstall or replace it rather than wait for an update.
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2<=1.2+ 1 more
- (no CPE)range: <=1.2
- (no CPE)range: <=1.2
Patches
Vulnerability mechanics
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
1- Wordfence Intelligence Weekly WordPress Vulnerability Report (June 8, 2026 to June 14, 2026)Wordfence Blog · Jun 18, 2026