#VU110438 Cross-site scripting in PHP - CVE-2007-1454

Vulnerability identifier: #VU110438

Vulnerability risk: Medium

CVSSv4.0: N/A

CVE-ID: CVE-2007-1454

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 due to insufficient sanitization of user-supplied data passed via "ext/filter" when certain whitespace characters, which passes one filter but is collapsed into a valid tag, as demonstrated using %0b. 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.

Mitigation
Install update from vendor's website.

Vulnerable software versions

PHP: 5.2.0

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External links
https://secunia.com/advisories/25056
https://secunia.com/advisories/25062
https://www.debian.org/security/2007/dsa-1283
https://www.mandriva.com/security/advisories?name=MDKSA-2007:090
https://www.novell.com/linux/security/advisories/2007_32_php.html
https://www.php-security.org/MOPB/MOPB-18-2007.html
https://www.securityfocus.com/bid/22914

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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.