CVE-2021-42840

highpriority · attend · 66EPSS 0.586 · 99 %ileexploit · functionalEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · functional

Likely / severe?

58.6% (99th) EPSS

CVSS 9 · high

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

9.0

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.09highAV:N/AC:L/Au:S/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 8 · impact 10

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-434USprimary

exploits (2)

Public proof-of-concept and weaponised exploit code.

EDB-50531SuiteCRM 7.11.18 - Remote Code Execution (RCE) (Authenticated) (Metasploit)functional · exploit_db
exploit/linux/http/suitecrm_log_file_rceSuiteCRM Log File Remote Code Executionfunctional · metasploit

affected products (3)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
salesagility suitecrm< 7.11.19nvdUScpe:2.3:a:salesagility:suitecrm:*:*:*:*:*:*:*:*
Bitnami suitecrm< 7.11.19osvUSpkg:bitnami/suitecrm

advisories (1)

Vendor and ecosystem advisories describing this.

BIT-suitecrm-2021-428402024-03-06vendor · osvUS
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.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2021-10-22modified 2026-06-17

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+5024 more

references (17)

External citations — patches, advisories, analysis.

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