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CVE-2021-42840

HIGH
8.8
CVSS Score
Published: October 22, 2021 at 06:20 PM UTC
Updated: June 17, 2026 at 04:10 AM UTC
1 product affected across 1 vendorSuiteCRM

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Severity
HIGH8.8
Exploit prediction
EPSS 59%

Description

SuiteCRM before 7.11.19 allows remote code execution via the system settings Log File Name setting. In certain circumstances involving admin account takeover, logger_file_name can refer to an attacker-controlled PHP file under the web root, because only the all-lowercase PHP file extensions were blocked. NOTE: this issue exists because of an incomplete fix for CVE-2020-28328.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

SuiteCRM· Salesagility
95%
v < 7.11.19
Affected range stops below 7.11.19, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (5)

x_refsource_MISCExploitThird Party AdvisoryVDB Entry
Source: [email protected]
http://packetstormsecurity.com/files/165001/SuiteCRM-7.11.18-Remote-Code-Execution.html
x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://docs.suitecrm.com/admin/releases/7.11.x/#_7_11_19
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/rapid7/metasploit-framework/commits/master/modules/exploits/linux/http/suitecrm_log_file_rce.rb
x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://suitecrm.com/time-to-upgrade-suitecrm-7-11-19-7-10-30-lts-released/
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://theyhack.me/SuiteCRM-RCE-2/

CVSS

8.8HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-434

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