XSS exists in the CMS Made Simple (CMSMS) 2.1.6 "Content-->News-->Add Article" feature via the m1_summary parameter.

published 2017-03-24 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-16287

cvss: 5.4; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 44%
public exploits: 0; none known

XSS exists in the CMS Made Simple (CMSMS) 2.1.6 "Content-->News-->Add Article" feature via the m1_summary parameter. Someone must login to conduct the attack.

Exploit prediction

0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

03i0.com http://www.03i0.com/index.php/archives/113/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	5.4	CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	3.5	AV:N/AC:M/Au:S/C:N/I:P/A:N

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

03i0.com /index.php/archives/113/
exploit, third-party-advisory, url-repurposed
securityfocus.com /bid/97204
vdb-entry

Sources

CVE List CVE-2017-7256
NVD CVE-2017-7256

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