CVE-2020-22937Public exploitNetwork attack vector

Remote code execution via unfiltered table prefix

Published Aug 17, 2021 · Updated Aug 4, 2024

Code injection in EmpireCMS 7.5 allows remote attackers to execute arbitrary PHP code through the web-based installation workflow. SetDb passes the posted mydbtbpre table prefix to RepEcmsConfig, which substitutes it into e/config/config.php without filtering PHP syntax. The installation endpoint must remain reachable and the configuration file writable; successful injection executes in the web server's PHP context.

CVSS severity9.8
Critical
EPSS probability2.82%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in EmpireCMS 7.5 allows remote attackers to execute arbitrary PHP code through the web-based installation workflow. SetDb passes the posted mydbtbpre table prefix to RepEcmsConfig, which substitutes it into e/config/config.php without filtering PHP syntax. The installation endpoint must remain reachable and the configuration file writable; successful injection executes in the web server's PHP context.

The record

CVE
CVE-2020-22937
Published
Aug 17, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-94, T1505.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 17, 2021CVE 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
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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