EUVD-2026-29421
GHSA-r99x-848h-xghh
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 Bootstrap Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the box shortcode in all versions up to, and including, 1.0. This is due to insufficient input sanitization and output escaping on user supplied attributes. 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 Bootstrap Shortcode plugin for WordPress allows authenticated attackers with Contributor-level access to inject arbitrary JavaScript into pages via the box shortcode, executing malicious scripts whenever users view affected pages. The vulnerability exists in all versions up to 1.0 due to insufficient input sanitization and output escaping. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated WordPress user account with Contributor-level access or above (Editor, Author roles meet this threshold). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 6.4 (Medium) score reflects a network-accessible vulnerability requiring low privilege (Contributor role) and no user interaction, with changed scope and limited confidentiality and integrity impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with a Contributor account on a WordPress site (obtained via social engineering, registration on an open-registration site, or account compromise) creates or edits a post and inserts a malicious `box` shortcode such as `[box onload='fetch("/wp-admin/user-new.php", {method:"POST", body:"user=admin&pass=hacked"})']`. When site administrators or other users view the published post, the JavaScript executes in their browser, stealing their session cookies or creating a new admin account for the attacker. … |
| Remediation | Update the Bootstrap Shortcode plugin to the patched version released by the vendor. … Detailed patch versions, workarounds, and compensating controls in full report. |
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