GreenCMS 2.3.0603 has an arbitrary file download vulnerability via an index.php?m=admin&c=media&a=downfile URI.

published 2018-06-29 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-4939

cvss: 7.5; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.6%; EPSS 1.6% chance of exploitation in 30 days, percentile 75%
public exploits: 0; none known

Exploit prediction

1.56% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/GreenCMS/GreenCMS/issues/111 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	7.5	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness

CWE-20 Improper Input Validation

References

github.com /GreenCMS/GreenCMS/issues/111
exploit, third-party-advisory

Sources

CVE List CVE-2018-12988
NVD CVE-2018-12988

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