CVE-2022-31743

Mozilla Firefox ESR and 2 others: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVE-2022-31743 is fixed in 5 products on 2 platforms, first by Mozilla Firefox (en-US) 101.0, released May 31, 2022. It is not reported as exploited. Patch Radar priority: Routine.

RoutineFixed on 2 platforms

CVSS

6.5

Medium

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0046

40th percentile

Firefox's HTML parser did not correctly interpret HTML comment tags, resulting in an incongruity with other browsers. This could have been used to escape HTML comments on pages that put user-controlled data in them. This vulnerability affects Firefox < 101.

Where it's fixed

Product	Fixed in	Fix	Released
Windows apps
Mozilla Firefox (en-US)	101.0	Mozilla Firefox (en-US) 101.0	May 31, 2022
Mozilla Firefox ESR (en-US)	102.0	Mozilla Firefox ESR (en-US) 102.0	Jun 23, 2022
Linux
firefox · Ubuntu 18.04.6 LTS (bionic)	101.0.1+build1-0ubuntu0.18.04.1	firefox 101.0.1+build1-0ubuntu0.18.04.1	May 31, 2022
firefox · Ubuntu 20.04 LTS (focal)	101.0.1+build1-0ubuntu0.20.04.1	firefox 101.0.1+build1-0ubuntu0.20.04.1	May 31, 2022
firefox-geckodriver · Ubuntu 18.04.6 LTS (bionic)	101.0.1+build1-0ubuntu0.18.04.1	firefox-geckodriver 101.0.1+build1-0ubuntu0.18.04.1	May 31, 2022
firefox-geckodriver · Ubuntu 20.04 LTS (focal)	101.0.1+build1-0ubuntu0.20.04.1	firefox-geckodriver 101.0.1+build1-0ubuntu0.20.04.1	May 31, 2022
firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic)	101.0.1+build1-0ubuntu0.18.04.1	firefox-mozsymbols 101.0.1+build1-0ubuntu0.18.04.1	May 31, 2022
firefox-mozsymbols · Ubuntu 20.04 LTS (focal)	101.0.1+build1-0ubuntu0.20.04.1	firefox-mozsymbols 101.0.1+build1-0ubuntu0.20.04.1	May 31, 2022

Details

Published
May 31, 2022
Weakness
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Vendor advisory
https://nvd.nist.gov/vuln/detail/CVE-2022-31743

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