CVE-2021-26271

It was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by persuading a victim to paste crafted text into the Styles input of specific dialogs (in the Advanced Tab for Dialogs plugin).
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 69%
VendorProductVersion
ckeditorckeditor
4.0 ≤
𝑥
< 4.16
oracleagile_plm
9.3.5
oracleagile_plm
9.3.6
oracleapplication_express
𝑥
< 21.1.0
oraclefinancial_services_analytical_applications_infrastructure
8.0.6 ≤
𝑥
≤ 8.0.9
oraclefinancial_services_analytical_applications_infrastructure
8.1.0
oraclefinancial_services_analytical_applications_infrastructure
8.1.1
oraclejd_edwards_enterpriseone_tools
𝑥
< 9.2.6.0
oraclesiebel_ui_framework
𝑥
< 21.9
oraclewebcenter_sites
12.2.1.3.0
oraclewebcenter_sites
12.2.1.4.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
ckeditor
bullseye
4.16.0+dfsg-2
no-dsa
buster
no-dsa
stretch
postponed
bookworm
4.19.1+dfsg-1
no-dsa
sid
4.22.1+dfsg1-2
fixed
trixie
4.22.1+dfsg1-2
fixed
ckeditor3
sid
vulnerable
trixie
vulnerable
bookworm
no-dsa
bullseye
no-dsa
buster
no-dsa
stretch
postponed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
ckeditor
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
Fixed 4.16.0+dfsg-2
released
hirsute
ignored
groovy
ignored
focal
needs-triage
bionic
needs-triage
xenial
needs-triage
trusty
dne