CVE-2021-45897Public exploitNetwork attack vector

Authenticated RCE via unsanitized image extension

Published Jan 28, 2022 · Updated Aug 4, 2024

Remote code execution in SuiteCRM before 7.12.3 and 8.x before 8.0.2 allows remote authenticated users to execute PHP via crafted email-template attachments. The repairEntryPointImages function copies an attached file into the public web directory while taking its extension from an unvalidated filename parameter, allowing a PHP webshell to be created. Exploitation requires a SuiteCRM account with EmailTemplates access and results in code execution under the web server account.

CVSS severity8.8
High
EPSS probability4.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote code execution in SuiteCRM before 7.12.3 and 8.x before 8.0.2 allows remote authenticated users to execute PHP via crafted email-template attachments. The repairEntryPointImages function copies an attached file into the public web directory while taking its extension from an unvalidated filename parameter, allowing a PHP webshell to be created. Exploitation requires a SuiteCRM account with EmailTemplates access and results in code execution under the web server account.

The record

CVE
CVE-2021-45897
Published
Jan 28, 2022
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1505.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 28, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5NVDAV:N/AC:L/Au:S/C:P/I:P/A:P
8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1505.003Server Software Component: Web Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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