{"cve":"CVE-2018-12587","nvd":{"published":"2018-08-13T17:29:00.857","modified":"2026-06-17T01:38:01.183","status":"Modified","description":"A cross-site scripting (XSS) vulnerability was found in valeuraddons German Spelling Dictionary v1.3 (an Opera Browser add-on). Instead of providing text for a spelling check, remote attackers may inject arbitrary web script or HTML via the ajax query parameter in the URL Address Bar.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-79"],"references":["https://metamorfosec.com/Files/Advisories/METS-2018-003-A_XSS_Vulnerability_in_German_Spelling_Dictionary_1.3.txt","https://www.openbugbounty.org/reports/610381/","https://metamorfosec.com/Files/Advisories/METS-2018-003-A_XSS_Vulnerability_in_German_Spelling_Dictionary_1.3.txt","https://www.openbugbounty.org/reports/610381/"],"products":["german_spelling_dictionary_project:german_spelling_dictionary"],"source":"nvd","synced_at":"2026-10-19T20:52:03.425131697+00:00"},"epss":{"cve":"CVE-2018-12587","score":0.00809,"percentile":0.56888,"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."]}