Quick answers
- Is CVE-2026-90943 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-90943 being exploited in the wild.
- How severe is CVE-2026-90943?
- High severity, with a CVSS score of 8.7, published 14 September 2026.
- Which products and versions are affected?
- Parallax Filament-Comments through 3.0.0.
- Is there a fix for CVE-2026-90943?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-90943 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-90943?
- Check whether you run Parallax Filament-Comments at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is a stored cross-site scripting (XSS) flaw in the comment body rendering logic of filament-comments. The vulnerable code in comments.blade.php uses unsafe HTML rendering (toHtmlString()) without proper sanitization, allowing authenticated users to inject arbitrary JavaScript payloads that persist in the database. When other users (including administrators) view comments, the malicious scripts execute in their browsers in the context of the admin panel, potentially allowing attackers to steal session tokens or perform unauthorized actions. The vulnerability affects versions through 3.0.0 and requires authentication to exploit, though the threat model includes compromised low-privilege panel accounts.
Affected products
- Parallax filament-comments through 3.0.0
Timeline
- 2026-09-14: disclosed