Vulnerability identifier: #VU50868

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-27515

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
url-parse
Web applications / Other software

Vendor: unshiftio

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the mishandling of backslash such as http:/. A remote attacker can send a specially crafted HTTP request and gain unauthorized access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

url-parse: 0.0.4 - 1.4.7

---

External links
http://github.com/unshiftio/url-parse/commit/d1e7e8822f26e8a49794b757123b51386325b2b0
http://github.com/unshiftio/url-parse/compare/1.4.7...1.5.0
http://github.com/unshiftio/url-parse/pull/197

---

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.