Vulnerability identifier: #VU12327
Vulnerability risk: Low
CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]
CVE-ID:
CWE-ID:
CWE-79
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
PHP
Universal components / Libraries /
Scripting languages
Vendor: PHP Group
Description
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists in the phar_do_404() and phar_do_403() functions due to insufficient sanitization of user-supplied data processed by the phar_do_404() and phar_do_403() functions, as defined in the ext/phar/phar_object.c source code file. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
The vulnerability exists due to an incomplete fix for CVE-2018-5712.
Mitigation
The vulnerability is addressed in the following versions: 5.6.36, 7.1.17, 7.2.5 and 7.0.30.
Vulnerable software versions
PHP: 5.6.0 - 5.6.35, 7.0.0 - 7.0.29, 7.1.0 - 7.1.16, 7.2.0 - 7.2.4
External links
https://bugs.php.net/bug.php?id=76129
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.