CVE-2020-26282

Browserup Proxy vulnerability

CVSS

10.0

EPSS

4.6%

EPSS pct

91th

Exploited

No known

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.

Affected vendor

Browserup

Affected product

Browserup Proxy

CVSS vector

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

Weakness type (CWE)

CWE-74 — Injection

Published

2020-12-24

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity.

Its EPSS score of 4.6% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2020-26282

Confirm whether Browserup Browserup Proxy is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2020-26282.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-26282

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-26282 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Are you exposed to CVE-2020-26282?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2020-26282.

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