CVE-2020-26973 (GCVE-0-2020-26973)

Vulnerability from cvelistv5 – Published: 2021-01-07 13:53 – Updated: 2024-08-04 16:03
VLAI?
Summary
Certain input to the CSS Sanitizer confused it, resulting in incorrect components being removed. This could have been used as a sanitizer bypass. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
Severity ?
No CVSS data available.
CWE
  • CSS Sanitizer performed incorrect sanitization
Assigner
References
Impacted products
Vendor Product Version
Mozilla Firefox Affected: unspecified , < 84 (custom)
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Mozilla Thunderbird Affected: unspecified , < 78.6 (custom)
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Mozilla Firefox ESR Affected: unspecified , < 78.6 (custom)
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Sightings

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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.