CVE-2020-26282
Server-Side Template Injection
Description
### Impact 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 assigned CVE-2020-26282. ### Patches Effective Immediately, all users should upgrade to version 2.1.2 or higher. ### Workarounds None. ### References https://securitylab.github.com/research/bean-validation-RCE ### For more information If you have any questions or comments about this advisory: * Open an issue in [the BrowserUp Proxy repo](http://github.com/browserup/browserup-proxy) * Contact us via the [BrowserUp website](https://browserup.com) or email us at [[email protected]](mailto:[email protected])
How to fix CVE-2020-26282
To remediate CVE-2020-26282, upgrade the affected package to a fixed version below.
- —upgrade to 2.1.2 or later
Is CVE-2020-26282 being exploited?
Low — EPSS is 2.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.1.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N |