CVE-2020-26282
10.0
CRITICAL · CVSS 3.1 · EPSS 4.8% (pctl 92)
In your normal cycle
Critical by CVSS (10), but no sign of active exploitation.
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.
Scoring
| CVSS | 10.0 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N |
| EPSS | 4.83% — more likely to be exploited than 92% of all CVEs |
| Weakness | CWE-74 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2020-12-24 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| browserup | browserup proxy |
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
- 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
→ the Explorer · watch your stack · NVD