CVE-2010-3870
MEDIUM · CVSS 6.8EPSS 11.3%EU EUVD
The utf8_decode function in PHP before 5.3.4 does not properly handle non-shortest form UTF-8 encoding and ill-formed subsequences in UTF-8 data, which makes it easier for remote attackers to bypass cross-site scripting (XSS) and SQL injection protection mechanisms via a crafted string.
Key facts
- CVSS score
- 6.8 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:P- Weakness (CWE)
- CWE-20
- EPSS score
- 11.3% (96th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2010-3848)
- Published
- November 12, 2010
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2010-3848 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- php / php
References
- http://bugs.php.net/bug.php?id=48230(Exploit, Vendor Advisory)
- http://bugs.php.net/bug.php?id=49687(Exploit, Vendor Advisory)
- http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html(Mailing List, Third Party Advisory)
- http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052836.html(Mailing List, Third Party Advisory)
- http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052845.html(Mailing List, Third Party Advisory)
- http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html(Mailing List, Third Party Advisory)
- http://marc.info/?l=bugtraq&m=133469208622507&w=2(Mailing List, Third Party Advisory)
- http://secunia.com/advisories/42410(Third Party Advisory)
- http://secunia.com/advisories/42812(Third Party Advisory)
- http://sirdarckcat.blogspot.com/2009/10/couple-of-unicode-issues-on-php-and.html(Exploit, Third Party Advisory)
- http://support.apple.com/kb/HT4581(Third Party Advisory)
- http://svn.php.net/viewvc?view=revision&revision=304959(Patch, Vendor Advisory)
- http://us2.php.net/manual/en/function.utf8-decode.php#83935(Exploit, Vendor Advisory)
- http://www.acunetix.com/blog/web-security-articles/security-risks-associated-with-utf8_decode/(Exploit, Third Party Advisory)
- http://www.blackhat.com/presentations/bh-usa-09/VELANAVA/BHUSA09-VelaNava-FavoriteXSS-SLIDES.pdf(Exploit, Third Party Advisory)
- http://www.mandriva.com/en/security/advisories?name=MDVSA-2010:224(Third Party Advisory)
- http://www.openwall.com/lists/oss-security/2010/11/02/1(Mailing List, Third Party Advisory)
- http://www.openwall.com/lists/oss-security/2010/11/02/11(Mailing List, Third Party Advisory)
- http://www.openwall.com/lists/oss-security/2010/11/02/2(Mailing List, Third Party Advisory)
- http://www.openwall.com/lists/oss-security/2010/11/02/4(Mailing List, Third Party Advisory)
- http://www.openwall.com/lists/oss-security/2010/11/02/6(Mailing List, Third Party Advisory)
- http://www.openwall.com/lists/oss-security/2010/11/02/8(Mailing List, Third Party Advisory)
- http://www.openwall.com/lists/oss-security/2010/11/03/1(Mailing List, Third Party Advisory)
- http://www.php.net/ChangeLog-5.php(Vendor Advisory)
- http://www.redhat.com/support/errata/RHSA-2010-0919.html(Third Party Advisory)
- http://www.redhat.com/support/errata/RHSA-2011-0195.html(Third Party Advisory)
- http://www.securityfocus.com/bid/44605(Third Party Advisory, VDB Entry)
- http://www.securitytracker.com/id?1024797(Third Party Advisory, VDB Entry)
- http://www.ubuntu.com/usn/USN-1042-1(Third Party Advisory)
- http://www.vupen.com/english/advisories/2010/3081(Third Party Advisory)
- http://www.vupen.com/english/advisories/2011/0020(Third Party Advisory)
- http://www.vupen.com/english/advisories/2011/0021(Third Party Advisory)
- http://www.vupen.com/english/advisories/2011/0077(Third Party Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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