CVE-2020-27511

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References
Link Resource
http://prototypejs.org/ Vendor Advisory
https://github.com/prototypejs/prototype/blob/dee2f7d8611248abce81287e1be4156011953c90/src/prototype/lang/string.js#L283 Exploit Third Party Advisory
https://github.com/yetingli/PoCs/blob/main/CVE-2020-27511/Prototype.md Exploit Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:prototypejs:prototype:1.7.3:*:*:*:*:*:*:*
History

03 Aug 2021, 19:15

Type Values Removed Values Added
Summary An issue was discovered in the stripTags and unescapeHTML components in Prototype 1.7.3 version 1.6 and below where an attacker can cause a Regular Expression Denial of Service (ReDOS) through stripping crafted HTML tags. 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.

25 Jun 2021, 01:32

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : 5.0
v3 : 7.5
CPE cpe:2.3:a:prototypejs:prototype:1.7.3:*:*:*:*:*:*:*
CWE NVD-CWE-noinfo
References (MISC) https://github.com/yetingli/PoCs/blob/main/CVE-2020-27511/Prototype.md - (MISC) https://github.com/yetingli/PoCs/blob/main/CVE-2020-27511/Prototype.md - Exploit, Third Party Advisory
References (MISC) http://prototypejs.org/ - (MISC) http://prototypejs.org/ - Vendor Advisory
References (MISC) https://github.com/prototypejs/prototype/blob/dee2f7d8611248abce81287e1be4156011953c90/src/prototype/lang/string.js#L283 - (MISC) https://github.com/prototypejs/prototype/blob/dee2f7d8611248abce81287e1be4156011953c90/src/prototype/lang/string.js#L283 - Exploit, Third Party Advisory

21 Jun 2021, 20:27

Type Values Removed Values Added
New CVE
Information

Published : 2021-06-21 20:15

Updated : 2024-02-04 21:47

NVD link : CVE-2020-27511

Mitre link : CVE-2020-27511

CVE.ORG link : CVE-2020-27511

JSON object : View

Products Affected

prototypejs

  • prototype
CWE
NVD-CWE-noinfo