CVE-2020-27511

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Se ha descubierto un problema en los componentes stripTags y unescapeHTML de Prototype versión 1.7.3 por el que un atacante puede provocar una denegación de servicio por expresión regular (ReDOS) a través de la eliminación de las etiquetas HTML

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-10-21 CVE Reserved
2021-06-21 CVE Published
2024-03-06 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC
https://github.com/prototypejs/prototype/blob/dee2f7d8611248abce81287e1be4156011953c90/src/prototype/lang/string.js#L283	2024-08-04
https://github.com/yetingli/PoCs/blob/main/CVE-2020-27511/Prototype.md	2024-08-04

URL	Date	SRC

URL	Date	SRC
http://prototypejs.org	2021-09-20

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Prototypejs Search vendor "Prototypejs"		Prototype Search vendor "Prototypejs" for product "Prototype"				1.7.3 Search vendor "Prototypejs" for product "Prototype" and version "1.7.3"		-		Affected