Snews CMS 1.7 Cross-Site Request Forgery via changeup

Published 7 mo ago 2026-04-04 · modified 3 mo ago 2026-07-21 · JSON

CVSS

5.3

v3.1 · CNA

CISA KEV

not known exploited

EPSS

0.2%

percentile 6%

Public exploits

none known

Snews CMS 1.7 contains a cross-site request forgery vulnerability that allows attackers to change administrator credentials without authentication by crafting malicious HTML forms. Attackers can trick authenticated administrators into visiting a page containing a hidden form that submits POST requests to the changeup action, modifying the admin username and password parameters to gain unauthorized access.

CISA SSVC assessment

Exploitation: Proof of concept public
Automatable: yes
Technical impact: partial
Assessed: 7 mo ago 2026-04-06

Exploit prediction (EPSS)

0.17% probability of exploitation in the next 30 days, higher than 6% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
CNA	4.0	6.9	`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L`
CNA	3.1	5.3	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N`
CNA	4.0	6.9	`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L/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`
CNA	3.1	5.3	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N`
NVD	3.1	4.3	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N`

Affected products

Snewscms Snews CMS Cross Site Request Forgery

Classification

Weakness

CWE-352 Cross-Site Request Forgery

References

exploit-db.com /exploits/40705 · exploit
vulncheck.com /advisories/snews-cms-cross-site-request-forgery-via-changeup · third-party-advisory

Sources

CVE List: CVE-2016-20051
NVD: CVE-2016-20051

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.

Summary