Vulnerability-Lookup

GHSA-RRQH-MGCV-XMPW

Vulnerability from github – Published: 2026-09-14 18:31 – Updated: 2026-09-14 18:31

Details

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.

Severity

8.7 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

9.3 (Critical)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-90943"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-14T16:17:41Z",
    "severity": "CRITICAL"
  },
  "details": "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.",
  "id": "GHSA-rrqh-mgcv-xmpw",
  "modified": "2026-09-14T18:31:21Z",
  "published": "2026-09-14T18:31:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90943"
    },
    {
      "type": "WEB",
      "url": "https://github.com/parallax/filament-comments/blob/3.0.0/resources/views/comments.blade.php"
    },
    {
      "type": "WEB",
      "url": "https://github.com/parallax/filament-comments/blob/3.0.0/src/Policies/FilamentCommentPolicy.php"
    },
    {
      "type": "WEB",
      "url": "https://hackindex.io/research/stored-xss-filament-comments-unescaped-rendering"
    },
    {
      "type": "WEB",
      "url": "https://packagist.org/packages/parallax/filament-comments"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/parallax-filament-comments-through-3.0.0-stored-xss-via-comment-body"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-90943 (GCVE-0-2026-90943)

Vulnerability from cvelistv5 – Published: 2026-09-14 15:37 – Updated: 2026-09-14 20:07

Title

parallax filament-comments through 3.0.0 Stored XSS via Comment Body

Summary

Severity

8.7 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

9.3 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-14 19:21 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

VulnCheck mitre root

References

5 references

URL	Tags
https://hackindex.io/research/stored-xss-filament…	third-party-advisorytechnical-description
https://github.com/parallax/filament-comments/blo…	technical-description
https://github.com/parallax/filament-comments/blo…	technical-description
https://packagist.org/packages/parallax/filament-…	product
https://www.vulncheck.com/advisories/parallax-fil…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
parallax	filament-comments	Affected: 0 , ≤ 3.0.0 (semver)

Date Public

2026-08-21 00:00

Credits

Joshua van der Poll

Show details on NVD website

JSON

To clipboard

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  "containers": {
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        "metrics": [
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                "id": "CVE-2026-90943",
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                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
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                "role": "CISA Coordinator",
                "timestamp": "2026-09-14T19:21:27.866482Z",
                "version": "2.0.3"
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          "dateUpdated": "2026-09-14T20:07:01.726Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://packagist.org",
          "defaultStatus": "unaffected",
          "packageName": "parallax/filament-comments",
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      "metrics": [
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.