Critical severity10.0NVD Advisory· Published Dec 24, 2020· Updated Jun 17, 2026
CVE-2020-26282
CVE-2020-26282
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
com.browserup:browserup-proxyMaven | < 2.1.2 | 2.1.2 |
Affected products
2- Range: < 2.1.2
Patches
Vulnerability mechanics
References
6- github.com/browserup/browserup-proxy/commit/4b38e7a3e20917e5c3329d0d4e9590bed9d578abnvdPatchThird Party AdvisoryWEB
- securitylab.github.com/research/bean-validation-RCEnvdExploitThird Party AdvisoryWEB
- github.com/advisories/GHSA-wmfg-55f9-j8hqghsaADVISORY
- github.com/browserup/browserup-proxy/releases/tag/v2.1.2nvdThird Party AdvisoryWEB
- github.com/browserup/browserup-proxy/security/advisories/GHSA-wmfg-55f9-j8hqnvdThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2020-26282ghsaADVISORY
News mentions
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