XSS in Brainvireinfo Media Library Alt Text Editor
CVE-2026-1820
The Media Library Alt Text Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'bvmalt_sc_div_update_alt_text' shortcode in all versions up to, and including, 1.0.0 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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.002 (5.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
Affected products
- Brainvireinfo Media Library Alt Text Editor — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-1820?
- CVE-2026-1820 is a medium-severity vulnerability in Brainvireinfo Media Library Alt Text Editor, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-03-07.
- How severe is CVE-2026-1820?
- Medium severity. CVSS v3 base score is 6.4 out of 10.