CVE-2020-26282
CRITICALbrowserup_proxy < 2.1.2 - Unauthenticated Remote Code Execution via Java EL Expression Injection
Title source: llmDescription
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.
References (4)
Core 4
Core References
Third Party Advisory x_refsource_confirm
https://github.com/browserup/browserup-proxy/security/advisories/GHSA-wmfg-55f9-j8hq
Exploit, Third Party Advisory x_refsource_misc
https://securitylab.github.com/research/bean-validation-RCE
Third Party Advisory x_refsource_misc
https://github.com/browserup/browserup-proxy/releases/tag/v2.1.2
Patch, Third Party Advisory x_refsource_misc
https://github.com/browserup/browserup-proxy/commit/4b38e7a3e20917e5c3329d0d4e9590bed9d578ab
Scores
CVSS v3
10.0
EPSS
0.0463
EPSS Percentile
90.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Details
CWE
CWE-74
Status
published
Products (2)
browserup/browserup_proxy
< 2.1.2
com.browserup/browserup-proxy
0 - 2.1.2Maven
Published
Dec 24, 2020
Tracked Since
Feb 18, 2026