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prionPRIOn knowledge basePRION:CVE-2022-34471
HistoryDec 22, 2022 - 8:15 p.m.

Design/Logic Flaw

2022-12-2220:15:00
PRIOn knowledge base
www.prio-n.com
3
addon security vulnerability
browser downgrade attack
firefox version<102

AI Score

6.9

Confidence

High

EPSS

0.001

Percentile

34.6%

When downloading an update for an addon, the downloaded addon update’s version was not verified to match the version selected from the manifest. If the manifest had been tampered with on the server, an attacker could trick the browser into downgrading the addon to a prior version. This vulnerability affects Firefox < 102.