Bagisto has HTML Filter Bypass that Enables Stored XSS
Description
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 `` 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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
bagisto/bagistoPackagist | < 2.3.10 | 2.3.10 |
Affected products
2Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-2mwc-h2mg-v6p8ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-21451ghsaADVISORY
- github.com/bagisto/bagisto/commit/f533b1cd9c80896792da60976179c95573d78b79ghsaWEB
- github.com/bagisto/bagisto/releases/tag/v2.3.10ghsaWEB
- github.com/bagisto/bagisto/security/advisories/GHSA-2mwc-h2mg-v6p8ghsax_refsource_CONFIRMWEB
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