CVE-2020-26282

Template Injection in BrowserUp Proxy

CVSS 10 CRITICALEPSS 4.6%CWE-74

Vexday Risk Score

28Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 10EPSS 4.6%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

24 Dec 2020Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Affected products

browserup · browserup-proxy

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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