CVE-2024-7524

Firefox adds web-compatibility shims in place of some tracking scripts blocked by Enhanced Tracking Protection.  On a site protected by Content Security Policy in "strict-dynamic" mode, an attacker able to inject an HTML element could have used a DOM Clobbering attack on some of the shims and achieved XSS, bypassing the CSP strict-dynamic protection. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, and Firefox ESR < 128.1.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.1 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
mozillaCNA
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CISA-ADPADP
6.1 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 44%
VendorProductVersion
mozillafirefox
𝑥
< 129.0
mozillafirefox_esr
𝑥
< 115.14
mozillafirefox_esr
116.0 ≤
𝑥
< 128.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
firefox
sid
145.0.1-1
fixed
firefox-esr
bullseye
115.14.0esr-1~deb11u1
fixed
bullseye (security)
140.5.0esr-1~deb11u1
fixed
bookworm
128.14.0esr-1~deb12u1
fixed
bookworm (security)
140.5.0esr-1~deb12u1
fixed
trixie
140.4.0esr-1~deb13u1
fixed
trixie (security)
140.5.0esr-1~deb13u1
fixed
forky
140.5.0esr-1
fixed
sid
140.5.0esr-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
firefox
questing
not-affected
plucky
not-affected
oracular
not-affected
noble
not-affected
jammy
not-affected
focal
Fixed 129.0.1+build1-0ubuntu0.20.04.1
released
thunderbird
questing
not-affected
plucky
not-affected
oracular
not-affected
noble
not-affected
jammy
not-affected
focal
dne
mozjs38
questing
dne
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
needs-triage
mozjs52
questing
dne
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
needs-triage
bionic
ignored
mozjs68
questing
dne
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
mozjs78
questing
dne
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
mozjs91
questing
dne
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
mozjs102
questing
dne
plucky
dne
oracular
dne
noble
ignored
jammy
ignored
focal
dne
mozjs115
questing
dne
plucky
ignored
oracular
ignored
noble
ignored
jammy
dne
focal
dne