What’s Vulnerable › Vulnerabilities

CVE-2026-8894: iWR Tooltip <= 1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-27 · updated 2026-06-17
• Weakness: CWE-79

Description

The iWR Tooltip plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `iwrtooltip` shortcode in versions up to, and including, 1.0. This is due to insufficient input sanitization and output escaping on user supplied attributes in the iwr_tooltip() shortcode handler — the `title` attribute is concatenated directly into an HTML attribute without esc_attr() or any other escaping. 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

• vinaysankhyan iWR Tooltip: through 1.0

References

• https://plugins.trac.wordpress.org/browser/iwr-tooltip/tags/1.0/iwr-tooltip.php#L37
• https://plugins.trac.wordpress.org/browser/iwr-tooltip/tags/1.0/iwr-tooltip.php#L41
• https://www.wordfence.com/threat-intel/vulnerabilities/id/9dd6433f-cc12-47c7-a641-3da8a6b0f15b?source=cve

Get alerted when CVE-2026-8894 or the next vulnerability affects your stack