PT-2021-17337 · Ellislab · Expressionengine

Egix · Published 2021-03-15 · Updated 2022-07-12 · CVE-2021-27230

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: ExpressionEngine versions prior to 5.4.2 ExpressionEngine versions 6.x prior to 6.0.3

Description: The issue 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. This can be exploited by authenticated users.

Recommendations: For ExpressionEngine versions prior to 5.4.2, update to version 5.4.2 or later. For ExpressionEngine versions 6.x prior to 6.0.3, update to version 6.0.3 or later. As a temporary workaround, consider restricting access to the Translate::save() function until a patch is available.

Exploit

Fix

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

CVE-2021-27230

Affected Products

Expressionengine

References · 9

• 🔥 http://karmainsecurity.com/KIS-2021-03 · Exploit
• 🔥 http://packetstormsecurity.com/files/161805/ExpressionEngine-6.0.2-PHP-Code-Injection.html · Exploit
• https://expressionengine.com/features · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-27230 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-27230 · Security Note
• https://t.me/cibsecurity/24932 · Telegram Post
• https://hackerone.com/reports/1093444 · Note
• http://seclists.org/fulldisclosure/2021/Mar/32 · Note
• https://t.me/cvenotify/11707 · Telegram Post