Vulnerability in Ellislab Expressionengine
CVE-2017-0897
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.
EPSS: 0.040 (89.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Ellislab Expressionengine — versions Versions before 2.11.8 and 3.5.5
- Expressionengine — versions 2.0.0, 2.0.1, 2.0.2
Weakness classification (CWE)
References
- support@hackerone.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- support@hackerone.com (x_refsource_CONFIRM, Vendor Advisory)
- support@hackerone.com (Permissions Required, x_refsource_MISC)
- support@hackerone.com (x_refsource_CONFIRM, Vendor Advisory)
- support@hackerone.com (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2017-0897?
- CVE-2017-0897 is a high-severity vulnerability in Ellislab Expressionengine, classified under Use of Insufficiently Random Values. CVSS score: 7.5/10. Published 2017-06-22.
- How severe is CVE-2017-0897?
- High severity. CVSS v3 base score is 7.5 out of 10.