{"cve":"CVE-2010-3870","nvd":{"published":"2010-11-12T21:00:02.937","modified":"2026-06-16T23:23:43.477","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://bugs.php.net/bug.php?id=48230","http://bugs.php.net/bug.php?id=49687","http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html","http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052836.html","http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052845.html"],"products":["canonical:ubuntu_linux","php:php"],"source":"nvd","synced_at":"2026-10-19T19:57:56.749847046+00:00"},"epss":{"cve":"CVE-2010-3870","score":0.11281,"percentile":0.95971,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}