CVE-2020-25414Public exploitNetwork attack vector

Unauthenticated PHP code execution via captcha file inclusion

Published Jun 17, 2021 · Updated Aug 4, 2024

Local file inclusion in Monstra CMS 3.0.4 and earlier allows remote attackers to execute PHP code through the CAPTCHA endpoint. The plugins/captcha/crypt/cryptographp.inc.php script copies the cfg query parameter into the session configfile value and passes it directly to include(). No authentication or user interaction is required; exploitation requires a PHP-containing local file, such as a poisoned Apache log, that the web process can read.

CVSS severity9.8
Critical
EPSS probability2.03%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local file inclusion in Monstra CMS 3.0.4 and earlier allows remote attackers to execute PHP code through the CAPTCHA endpoint. The plugins/captcha/crypt/cryptographp.inc.php script copies the cfg query parameter into the session configfile value and passes it directly to include(). No authentication or user interaction is required; exploitation requires a PHP-containing local file, such as a poisoned Apache log, that the web process can read.

The record

CVE
CVE-2020-25414
Published
Jun 17, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-829, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 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

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P

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-829Inclusion of Functionality from Untrusted Control Sphere
T1190Exploit Public-Facing Application

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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