Vulnerability-Lookup

GHSA-G4XJ-2594-CC4J

Vulnerability from github – Published: 2022-05-24 17:35 – Updated: 2022-05-24 17:35

Details

When listening for page changes with a Mutation Observer, a malicious web page could confuse Firefox Screenshots into interacting with elements other than those that it injected into the page. This would lead to internal errors and unexpected behavior in the Screenshots code. This vulnerability affects Firefox < 83.

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{
  "affected": [],
  "aliases": [
    "CVE-2020-26967"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-12-09T01:15:00Z",
    "severity": "MODERATE"
  },
  "details": "When listening for page changes with a Mutation Observer, a malicious web page could confuse Firefox Screenshots into interacting with elements other than those that it injected into the page. This would lead to internal errors and unexpected behavior in the Screenshots code. This vulnerability affects Firefox \u003c 83.",
  "id": "GHSA-g4xj-2594-cc4j",
  "modified": "2022-05-24T17:35:38Z",
  "published": "2022-05-24T17:35:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26967"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1665820"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2020-50"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2020-26967 (GCVE-0-2020-26967)

Vulnerability from cvelistv5 – Published: 2020-12-09 00:25 – Updated: 2024-08-04 16:03

Summary

Severity

No CVSS data available.

CWE

Mutation Observers could break or confuse Firefox Screenshots feature

Assigner

mozilla

References

2 references

URL	Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1665820	x_refsource_MISC
https://www.mozilla.org/security/advisories/mfsa2…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Mozilla	Firefox	Affected: < 83

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JSON

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    ],
    "cna": {
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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.

Action not permitted

GHSA-G4XJ-2594-CC4J

CVE-2020-26967 (GCVE-0-2020-26967)

Tags

Sightings

Nomenclature