// For flags

CVE-2019-17016

Mozilla: Bypass of @namespace CSS sanitization during pasting

Severity Score

6.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

When pasting a &lt;style&gt; tag from the clipboard into a rich text editor, the CSS sanitizer incorrectly rewrites a @namespace rule. This could allow for injection into certain types of websites resulting in data exfiltration. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.

Al pegar un &lt;style&gt; etiqueta del portapapeles en un editor de texto enriquecido, el saneador CSS reescribe incorrectamente una regla @namespace. Esto podría permitir una inyección en ciertos tipos de sitios web resultando en la filtración de datos. Esta vulnerabilidad afecta a Firefox ESR versiones anteriores a la versión 68.4 y Firefox versiones anteriores a la versión 72.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-09-30 CVE Reserved
  • 2020-01-08 CVE Published
  • 2024-05-03 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC
References (26)
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mozilla
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Firefox
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< 72.0
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-
Affected
Mozilla
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Firefox Esr
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< 68.4
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-
Affected
Debian
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Debian Linux
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8.0
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-
Affected
Debian
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Debian Linux
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9.0
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-
Affected
Debian
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Debian Linux
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10.0
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-
Affected
Canonical
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Ubuntu Linux
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16.04
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lts
Affected
Canonical
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Ubuntu Linux
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18.04
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lts
Affected
Canonical
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Ubuntu Linux
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19.04
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-
Affected
Canonical
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Ubuntu Linux
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19.10
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-
Affected
Redhat
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Enterprise Linux Desktop
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6.0
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-
Affected
Redhat
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Enterprise Linux Desktop
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7.0
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-
Affected
Redhat
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Enterprise Linux Server
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6.0
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-
Affected
Redhat
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Enterprise Linux Server
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7.0
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-
Affected
Redhat
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Enterprise Linux Server Aus
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7.7
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Affected
Redhat
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Enterprise Linux Server Tus
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7.7
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Affected
Redhat
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Enterprise Linux Workstation
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6.0
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Affected
Redhat
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Enterprise Linux Workstation
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7.0
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-
Affected