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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
EllisLab ExpressionEngine
Versions before 2.11.8 and 3.5.5affected
References
- http://www.securityfocus.com/bid/99242 ↗
- https://docs.expressionengine.com/v2/about/changelog.html#version-2-11-8 ↗
- https://hackerone.com/reports/215890 ↗
- https://docs.expressionengine.com/latest/about/changelog.html#version-3-5-5 ↗
- https://expressionengine.com/blog/expressionengine-3.5.5-and-2.11.8-released ↗