CVE-2026-12561 (GCVE-0-2026-12561)

Vulnerability from cvelistv5 – Published: 2026-08-25 04:27 – Updated: 2026-08-25 12:06
VLAI
Title
tagDiv Composer <= 5.4.5 - Authenticated (Contributor+) Stored Cross-Site Scripting
Summary
The tagDiv Composer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the vc_raw_html shortcode in all versions up to and including 5.4.5. This is due to insufficient input sanitization and output escaping in the vc_raw_html::render() method, which base64-decodes shortcode content (after a strip_tags() that is bypassed because the encoded payload contains no tags on save) and concatenates the result directly into the page HTML. Because WordPress's save-time wp_kses_post() filter only sees the inert base64 text inside a normal shortcode bracket and does not decode it, the dangerous tags survive into post_content and are emitted unescaped at render time. 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 (for example, when an Editor or Administrator previews the pending post).
Severity
6.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 12:05 UTC
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
Wordfence CNA under the mitre root
CNA scorecard C 65/100 over 2289 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
tagDiv tagDiv Composer Affected: 0 , ≤ 5.4.5 (semver)
guessed Create a notification for this product.
Credits
Truoc Phan
Show details on NVD website
To clipboard 

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