CVE Catalog

CVE-2026-104003

MediumCVSS 5.4
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.23%

13th percentile - higher than 13% of all known CVEs

Summary

The WP User Avatar / ProfilePress plugin for WordPress is vulnerable to Arbitrary Shortcode Execution in versions up to and including 4.17.5. The get_user_profile_structure() function assembles the front-end profile buffer, including raw comment excerpts, and passes the entire buffer to do_shortcode() after only a narrow neutralization pass, allowing an authenticated attacker with Subscriber-level access or higher to inject arbitrary shortcodes with attacker-chosen attributes via a comment.

Risk Assessment

An attacker can execute arbitrary shortcodes from any active plugin or theme, reaching capability-gated or data-returning shortcodes and injecting raw HTML into a publicly viewable page. This may lead to data disclosure or further XSS attacks.

Recommendation

Update the WP User Avatar / ProfilePress plugin to a version newer than 4.17.5. If an update is not possible, consider disabling the plugin or restricting commenting for low-privileged users.

Related vulnerabilities

Original NVD description (English source)

The WP User Avatar / ProfilePress plugin for WordPress is vulnerable to Arbitrary Shortcode Execution in versions up to, and including, 4.17.5. This is due to the get_user_profile_structure() function assembling the front-end profile buffer — which includes raw comment excerpts inlined by author_comment_query() — and passing the entire buffer to do_shortcode() after only a narrow neutralization pass (ppress_neutralize_buffer_shortcodes) that blocks pp-custom-html and bracket fragments containing HTML delimiters but leaves any other well-formed shortcode intact. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary shortcodes (from any active plugin or theme) with attacker-chosen attributes by posting a comment whose body contains the shortcode markup; the shortcode is then executed server-side when any visitor loads the target's front-end profile Comments tab, letting the attacker reach capability-gated or data-returning shortcodes and inject raw HTML markup into a publicly viewable page.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS