CVE-2020-27511

An issue was discovered in the stripTags and unescapeHTML components in Prototype 1.7.3 where an attacker can cause a Regular Expression Denial of Service (ReDOS) through stripping crafted HTML tags.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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: 78%
VendorProductVersion
prototypejsprototype
1.7.3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
prototypejs
bullseye
no-dsa
buster
no-dsa
stretch
no-dsa
sid
1.7.3-1
fixed
trixie
1.7.3-1
fixed
bookworm
1.7.3-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
prototypejs
noble
needs-triage
mantic
ignored
lunar
ignored
kinetic
ignored
jammy
needs-triage
impish
ignored
hirsute
ignored
groovy
ignored
focal
needs-triage
bionic
needs-triage
xenial
needs-triage
trusty
dne
References
http://prototypejs.org/
https://github.com/prototypejs/prototype/blob/dee2f7d8611248abce81287e1be4156011953c90/src/prototype/lang/string.js#L283
https://github.com/yetingli/PoCs/blob/main/CVE-2020-27511/Prototype.md
http://prototypejs.org/
https://github.com/prototypejs/prototype/blob/dee2f7d8611248abce81287e1be4156011953c90/src/prototype/lang/string.js#L283
https://github.com/yetingli/PoCs/blob/main/CVE-2020-27511/Prototype.md