chshcms mccms Gf.php index server-side request forgery

published 2025-05-29 17 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-16409

cvss: 6.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 47%
public exploits: 0; none known

A vulnerability was found in chshcms mccms 2.7. It has been classified as critical. This affects the function index of the file sys/apps/controllers/api/Gf.php. The manipulation of the argument pic leads to server-side request forgery. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 17 mo ago (2025-05-29)

Exploit prediction

0.56% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/caigo8/CVE-md/blob/main/Mccms_V2.7/%E5%89%8D%E5%8F%B0SSRF.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CNA	3.1	6.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA	3.0	6.3	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P
CNA	4.0	5.3	CVSS: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
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

chshcms mccms

Classification

Weakness

CWE-918 Server-Side Request Forgery

References

github.com /caigo8/CVE-md/blob/main/Mccms_V2.7/%E5%89%8D%E5%8F%B0SSRF.md
exploit, third-party-advisory
vuldb.com /?id.310497
vdb-entry, technical-description, third-party-advisory
vuldb.com /?ctiid.310497
signature, permissions-required, third-party-advisory, vdb-entry
vuldb.com /?submit.582295
third-party-advisory, vdb-entry

Sources

CVE List CVE-2025-5327
NVD CVE-2025-5327

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary