Detections
Analytics

CVE-2017-0897

high

Description

ExpressionEngine version 2.x < 2.11.8 and version 3.x < 3.5.5 create an object signing token with weak entropy. Successfully guessing the token can lead to remote code execution.

References

https://hackerone.com/reports/215890

https://expressionengine.com/blog/expressionengine-3.5.5-and-2.11.8-released

https://docs.expressionengine.com/v2/about/changelog.html#version-2-11-8

https://docs.expressionengine.com/latest/about/changelog.html#version-3-5-5

http://www.securityfocus.com/bid/99242

Details

Source: Mitre, NVD

Published: 2017-06-22

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Severity: High

EPSS

EPSS: 0.00751