{"cve":"CVE-2019-25103","nvd":{"published":"2023-02-12T15:15:10.610","modified":"2026-06-17T02:31:39.920","status":"Modified","description":"A vulnerability has been found in simple-markdown 0.5.1 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file simple-markdown.js. The manipulation leads to inefficient regular expression complexity. The attack can be launched remotely. Upgrading to version 0.5.2 is able to address this issue. The patch is named 89797fef9abb4cab2fb76a335968266a92588816. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-220639.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-1333"],"references":["https://github.com/ariabuckles/simple-markdown/commit/89797fef9abb4cab2fb76a335968266a92588816","https://github.com/ariabuckles/simple-markdown/releases/tag/0.5.2","https://vuldb.com/?ctiid.220639","https://vuldb.com/?id.220639","https://github.com/ariabuckles/simple-markdown/commit/89797fef9abb4cab2fb76a335968266a92588816"],"products":["khanacademy:simple-markdown"],"source":"nvd","synced_at":"2026-10-19T21:37:38.595364862+00:00"},"epss":{"cve":"CVE-2019-25103","score":0.0094,"percentile":0.60958,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-gpvj-gp8c-c7p2","url":"https://osv.dev/vulnerability/GHSA-gpvj-gp8c-c7p2","summary":"Regular Expression Denial of Service in simple-markdown","modified":"2026-02-22T23:19:31.141696Z","packages":[{"ecosystem":"npm","name":"simple-markdown","purl":"pkg:npm/simple-markdown","ranges":["<0.5.2"],"fixed":["0.5.2"]}]}],"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."]}