CVE-2025-5327Public exploitNetwork attack vector

Authenticated SSRF via decrypted pic URL

Published May 29, 2025 · Updated May 29, 2025

SSRF in Mccms 2.7 allows remote authenticated users to send server-side requests or read files through an encrypted pic value. The Gf.php index method decrypts pic with sys_auth, passes the result to geturl without restricting its protocol or destination, and executes it with curl_exec. A low-privileged session and a correctly encrypted value are required; successful requests can reach internal services or server-accessible files.

CVSS severity5.3
Medium
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Mccms 2.7 allows remote authenticated users to send server-side requests or read files through an encrypted pic value. The Gf.php index method decrypts pic with sys_auth, passes the result to geturl without restricting its protocol or destination, and executes it with curl_exec. A low-privileged session and a correctly encrypted value are required; successful requests can reach internal services or server-accessible files.

The record

CVE
CVE-2025-5327
Published
May 29, 2025
Updated
May 29, 2025
Vendor
chshcms
Product
Mccms
Classifications
CWE-918, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 29, 2025CVE publishedPublication date reported by the CVE source.
  2. May 29, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

chshcms · Mccmsversion=2.7

Published CVSS scores

6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
5.3VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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

CWE-918Server-Side Request Forgery (SSRF)
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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