EUVD-2026-32082
GHSA-25xp-mg6j-wcwf
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Stored Cross-Site Scripting in the iWR Tooltip WordPress plugin (versions up to and including 1.0) permits authenticated attackers holding contributor-level accounts or higher to plant persistent malicious scripts via the plugin's iwrtooltip shortcode. The root cause is direct string concatenation of the user-supplied title attribute into an HTML attribute inside the iwr_tooltip() handler at lines 37 and 41 of iwr-tooltip.php, with no call to esc_attr() or equivalent escaping. Any site visitor who subsequently loads a page containing the poisoned shortcode will execute the injected script in their browser, with scope-changed impact that can target session tokens, credentials, or site administrative functions. EPSS is 0.03% (9th percentile), and no public exploit or CISA KEV listing exists at time of analysis.
Technical ContextAI
The vulnerability resides in a WordPress shortcode handler - a server-side PHP function (iwr_tooltip()) that processes user-supplied shortcode attributes and interpolates them into rendered HTML output. WordPress shortcodes execute within the post content pipeline, meaning any user permitted to publish or contribute content can invoke them. The specific failure (CWE-79: Improper Neutralization of Input During Web Page Generation) is the absence of WordPress's built-in esc_attr() output-escaping function on the title attribute before it is written into an HTML attribute context. This allows an attacker to break out of the attribute string and inject event handlers (e.g., onmouseover) or script tags. Because the payload is stored in the WordPress database and rendered on each page load, exploitation is persistent and affects every visitor to the injected page, not just the attacker's own session. The CVSS Scope:Changed designation reflects this cross-user impact - the attacker's injected code runs in victims' browsers, outside the vulnerable component itself. Affected versions are confirmed as iWR Tooltip 0 through 1.0 per ENISA EUVD-2026-32082.
RemediationAI
No vendor-released patched version is confirmed from available data - all references point exclusively to the 1.0 release tag, and no newer version or official patch advisory has been identified. Site administrators should monitor the iwr-tooltip WordPress.org plugin page and the Wordfence advisory at https://www.wordfence.com/threat-intel/vulnerabilities/id/9dd6433f-cc12-47c7-a641-3da8a6b0f15b for patch availability. As an immediate compensating control, disable or deactivate the iWR Tooltip plugin until a patched release is confirmed; this eliminates the attack surface entirely with no functional trade-off if the tooltip feature is non-critical. If the plugin cannot be disabled, restrict WordPress contributor-role registration to trusted users only, as the vulnerability requires at minimum contributor-level authenticated access - removing open user registration reduces the attacker pool. Additionally, a Web Application Firewall with WordPress XSS rules (such as Wordfence's own firewall) can intercept shortcode injection attempts as a defense-in-depth measure, though this should not substitute for patching.
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External POC / Exploit Code
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