{"cve":"CVE-2020-26282","nvd":{"published":"2020-12-24T21:15:12.727","modified":"2026-06-17T03:07:59.597","status":"Modified","description":"BrowserUp Proxy allows you to manipulate HTTP requests and responses, capture HTTP content, and export performance data as a HAR file. BrowserUp Proxy works well as a standalone proxy server, but it is especially useful when embedded in Selenium tests. A Server-Side Template Injection was identified in BrowserUp Proxy enabling attackers to inject arbitrary Java EL expressions, leading to unauthenticated Remote Code Execution (RCE) vulnerability. This has been patched in version 2.1.2.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","score":10.0},"cwes":["CWE-74"],"references":["https://github.com/browserup/browserup-proxy/commit/4b38e7a3e20917e5c3329d0d4e9590bed9d578ab","https://github.com/browserup/browserup-proxy/releases/tag/v2.1.2","https://github.com/browserup/browserup-proxy/security/advisories/GHSA-wmfg-55f9-j8hq","https://securitylab.github.com/research/bean-validation-RCE","https://github.com/browserup/browserup-proxy/commit/4b38e7a3e20917e5c3329d0d4e9590bed9d578ab"],"products":["browserup:browserup_proxy"],"source":"nvd","synced_at":"2026-10-19T21:12:09.559580076+00:00"},"epss":{"cve":"CVE-2020-26282","score":0.04829,"percentile":0.91987,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-wmfg-55f9-j8hq","url":"https://osv.dev/vulnerability/GHSA-wmfg-55f9-j8hq","summary":"Server-Side Template Injection","modified":"2026-09-10T03:49:13.879483593Z","packages":[{"ecosystem":"Maven","name":"com.browserup:browserup-proxy","purl":"pkg:maven/com.browserup/browserup-proxy","ranges":["<2.1.2"],"fixed":["2.1.2"]}]}],"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."]}