CVE-2021-27230

8.8 highEPSS 2.8%

High (8.8) in expressionengine expressionengine. EPSS 2.8% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 2.8% chance of exploitation in the next 30 days; higher than 86% of CVEs (scores of 2026-10-31)
CWE: CWE-94
Published: 2021-03-15
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

expressionengine:expressionengine

References

http://karmainsecurity.com/KIS-2021-03
http://packetstormsecurity.com/files/161805/ExpressionEngine-6.0.2-PHP-Code-Injection.html
http://seclists.org/fulldisclosure/2021/Mar/32
https://expressionengine.com/features
https://hackerone.com/reports/1093444

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