Cross-site scripting in PHP - CVE-2010-3870
Published: February 13, 2023 / Updated: June 8, 2025
Vulnerability identifier: #VU110282
CSH Severity: Medium
CVSS v4: []
CVE-ID: CVE-2010-3870
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data when processing data passed via a crafted string. 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.
Affected software
PHP
Gentoo Linux
dev-lang/php
Gentoo Linux
dev-lang/php
How to mitigate CVE-2010-3870
Install update from vendor's website.
PHP - update to 5.3.4
dev-lang/php - update to 5.3.8
dev-lang/php - update to 5.3.8
Links to Public Exploits and PoC-codes
External References
- http://sirdarckcat.blogspot.com/2009/10/couple-of-unicode-issues-on-php-and.html
- http://www.mandriva.com/en/security/advisories?name=MDVSA-2010:224
- http://bugs.php.net/bug.php?id=48230
- http://us2.php.net/manual/en/function.utf8-decode.php#83935
- http://www.openwall.com/lists/oss-security/2010/11/02/8
- http://www.openwall.com/lists/oss-security/2010/11/02/11
- http://www.acunetix.com/blog/web-security-articles/security-risks-associated-with-utf8_decode/
- http://bugs.php.net/bug.php?id=49687
- http://www.openwall.com/lists/oss-security/2010/11/02/4
- http://www.openwall.com/lists/oss-security/2010/11/02/6
- http://www.openwall.com/lists/oss-security/2010/11/03/1
- http://www.openwall.com/lists/oss-security/2010/11/02/1
- http://www.openwall.com/lists/oss-security/2010/11/02/2
- http://www.blackhat.com/presentations/bh-usa-09/VELANAVA/BHUSA09-VelaNava-FavoriteXSS-SLIDES.pdf
- http://svn.php.net/viewvc?view=revision&revision=304959
- http://www.redhat.com/support/errata/RHSA-2010-0919.html
- http://www.securityfocus.com/bid/44605
- http://www.securitytracker.com/id?1024797
- http://www.vupen.com/english/advisories/2010/3081
- http://secunia.com/advisories/42410
- http://www.vupen.com/english/advisories/2011/0020
- http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052845.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052836.html
- http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html
- http://www.php.net/ChangeLog-5.php
- http://www.ubuntu.com/usn/USN-1042-1
- http://secunia.com/advisories/42812
- http://www.vupen.com/english/advisories/2011/0021
- http://www.vupen.com/english/advisories/2011/0077
- http://www.redhat.com/support/errata/RHSA-2011-0195.html
- http://support.apple.com/kb/HT4581
- http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html
- http://marc.info/?l=bugtraq&m=133469208622507&w=2