WP Composer <= 1.0.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'pbwp_raw_shortcode' Shortcode
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The WP Composer – The Easiest Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'pbwp_raw_shortcode' shortcode in all versions up to, and including, 1.0.5. This is due to the shortcode handler decoding Base64-encoded content and outputting it directly without any sanitization or 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. The Base64 encoding allows the payload to bypass WordPress's KSES content filtering at save time, since the encoded string contains no harmful HTML characters.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-2422
- 2026-10-03 Alias added: GHSA-mpx2-87r3-w97m
References
Other 4
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7e328f1d-687d-424f-aab7-343bcece90cd?source=cve
- https://plugins.trac.wordpress.org/browser/page-builder-wp/tags/1.0.5/inc/global/wpc-helpers.php#L3578
- https://plugins.trac.wordpress.org/browser/page-builder-wp/trunk/inc/global/wpc-helpers.php#L3578
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3482357%40page-builder-wp&new=3482357%40page-builder-wp
More GhozyLab vulnerabilities
- TI-2024-03034 Easy Notify Lite < 1.1.33 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
- TI-2025-05169 Easy Contact Form Lite < 1.1.29 - Contributor+ Stored XSS CVSS 3.1MEDIUM 4.3
- TI-2025-28982 WordPress Popup Builder plugin <= 1.1.35 - Local File Inclusion Vulnerability CVSS 3.1HIGH 7.5
- TI-2025-13195 Popup Builder <= 1.1.37 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Plugin Settings Reset CVSS 3.1MEDIUM 5.4
- TI-2025-35818 WordPress Gallery Lightbox plugin <= 1.0.0.41 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
- TI-2025-19753 WordPress Popup Builder plugin <= 1.1.33 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
Sources
- CVE-2026-2422 · CVE Program
- CVE-2026-2422 · NVD
- FIRST EPSS
- GHSA-mpx2-87r3-w97m · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences