CVE-2026-21451: medium-severity vulnerability in bagisto
Bagisto has HTML Filter Bypass that Enables Stored XSS
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.2epss 0.6%
Bagisto is an open source laravel eCommerce platform. A stored Cross-Site Scripting (XSS) vulnerability exists in Bagisto prior to version 2.3.10 within the CMS page editor. Although the platform normally attempts to sanitize `<script>` tags, the filtering can be bypassed by manipulating the raw HTTP POST request before submission. As a result, arbitrary JavaScript can be stored in the CMS content and executed whenever the page is viewed or edited. This exposes administrators to a high-severity risk, including complete account takeover, backend hijacking, and malicious script execution. Version 2.3.10 fixes the issue.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:P
Affected products
bagisto · bagistoRelated CVEs — bagisto
In the same product, most dangerous first.
CVE-2026-21450HIGHBagisto has SSTI in parameter that can lead to RCEEPSS 1.4%CVE-2026-21448HIGHBagisto has Normal & Blind SSTI from low-privilege user when ordering productEPSS 0.9%CVE-2026-21446HIGHBagisto Missing Authentication on Installer API EndpointsEPSS 0.6%CVE-2026-21449HIGHBagisto has SSTI via first and last name from low-privilege user (not admin)EPSS 0.5%CVE-2025-62416MEDIUMbagisto - Server Side Template Injection (SSTI) in Product DescriptionEPSS 0.4%CVE-2025-62417HIGHbagisto - CSV Formula Injection in Create New ProductEPSS 0.4%