Prototype pollution in timdown rangy

1) Prototype pollution

EUVDB-ID: #VU96657

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-26102

CWE-ID: CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes (\'Prototype Pollution\')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary JavaScript code.

The vulnerability exists due to improper input validation in extend() function in file rangy-core.js. A remote attacker can pass specially crafted input to the application and perform prototype pollution, which can result in information disclosure or data manipulation.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

rangy: 1.0 - 1.3.1

CPE2.3

• cpe:2.3:a:timdown:rangy:1.0:*:*:*:*:*:*:*
• cpe:2.3:a:timdown:rangy:1.1:*:*:*:*:*:*:*
• cpe:2.3:a:timdown:rangy:1.1.1:*:*:*:*:*:*:*

External links

https://github.com/timdown/rangy/issues/478
https://security.snyk.io/vuln/SNYK-JS-RANGY-3175702
https://github.com/timdown/rangy/releases/tag/1.3.2

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.