CVE-2025-55040Network attack vector

Attacker-controlled form installation via missing CSRF validation

Published Mar 18, 2026 · Updated Mar 18, 2026

CSRF in MuraCMS through 10.1.10 allows attackers to install malicious form definitions through an administrator's browser. The cForm.importform function accepts a forged multipart upload without validating a CSRF token and installs the submitted form archive. Exploitation requires an authenticated administrator to visit a crafted webpage and select the attacker-generated ZIP file, after which installed forms can collect sensitive user information.

CVSS severity8.8
High
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CSRF in MuraCMS through 10.1.10 allows attackers to install malicious form definitions through an administrator's browser. The cForm.importform function accepts a forged multipart upload without validating a CSRF token and installs the submitted form archive. Exploitation requires an authenticated administrator to visit a crafted webpage and select the attacker-generated ZIP file, after which installed forms can collect sensitive user information.

The record

CVE
CVE-2025-55040
Published
Mar 18, 2026
Updated
Mar 18, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-352, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 18, 2026Record 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

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

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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