RCE in Expressionengine
CVE-2021-27230
ExpressionEngine before 5.4.2 and 6.x before 6.0.3 allows PHP Code Injection by certain authenticated users who can leverage Translate::save() to write to an _lang.php file under the system/user/language directory.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.028 (86.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000
Affected products
Weakness classification (CWE)
References
- hackerone.com/reports/1093444 (Permissions Required, Third Party Advisory)
- expressionengine.com/features (Vendor Advisory)
- seclists.org/fulldisclosure/2021/Mar/32 (Mailing List, Third Party Advisory)
- karmainsecurity.com/KIS-2021-03 (Exploit, Third Party Advisory)
- packetstormsecurity.com/files/161805/ExpressionEngine-6.0.2-PHP-Code-Injection… (Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-27230?
- CVE-2021-27230 is a high-severity vulnerability in Expressionengine, classified under Code Injection. CVSS score: 8.8/10. Published 2021-03-15.
- How severe is CVE-2021-27230?
- High severity. CVSS v3 base score is 8.8 out of 10.