Security readout for executives and security teams
Plain-English summary
Snews CMS 1.7 has a cross-site request forgery issue that can let an attacker change administrator credentials if an administrator is induced into submitting a malicious web request. This could lead to loss of control of the site. The sources include a public exploit reference, but do not show confirmed active exploitation.
Executive priority
Treat as a targeted site-takeover risk for legacy Snews CMS deployments. It is not currently supported by evidence of active exploitation, but a public exploit reference increases urgency to identify affected systems and either obtain vendor guidance or retire the software.
Technical view
CVE-2016-20051 is a CWE-352 CSRF vulnerability in Snews CMS 1.7 involving the administrator credential-change flow, referenced as the changeup action. The provided description says crafted HTML forms can modify administrator username and password values. CVSS v4 is 6.9. Public references include Exploit-DB and VulnCheck.
Likely exposure
Exposure is likely limited to organizations still running Snews CMS 1.7. Risk is most relevant where administrators access the CMS through a browser and can be lured to attacker-controlled content while administrative access remains active.
Exploitation context
A public exploit reference exists, but the bundle does not cite KEV listing or confirmed in-the-wild exploitation. The vulnerability is CSRF-based, so practical exploitation depends on administrator browsing behavior and session state. Source details are limited and should be validated in the target environment.
Researcher notes
The bundle describes CSRF requiring a malicious form and administrator involvement, while the CVSS vector lists UI:N. Treat interaction requirements as an evidence ambiguity. Avoid assuming broader Snews versions or patches not named in the sources.
Mitigation direction
- Identify any Snews CMS 1.7 deployments in production or exposed environments.
- Check Snews CMS maintainer or vendor guidance for fixes or supported upgrade paths.
- If no supported fix exists, plan migration away from affected deployments.
- Limit administrative access to trusted networks where operationally feasible.
- Educate administrators not to browse untrusted sites while logged into the CMS.
Validation and detection
- Confirm whether any deployed CMS instance is Snews CMS version 1.7.
- Review administrative credential change history for unexpected changes.
- Verify whether credential-change requests have CSRF protections in the deployed code.
- Check web logs for unusual administrator credential-change activity.
- Confirm whether administrative interfaces are externally reachable.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-352: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2016-20051 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.9 (4.0)
- Known Exploited
- No
- Published
Vector: 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 and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
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——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
6.9MediumVector: 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
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-40705CVE reference · exploit
- VulnCheck Advisory: Snews CMS 1.7 Cross-Site Request Forgery via changeupCVE reference · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Cross-Site Request Forgery (CSRF)
Cross-Site Request Forgery (CSRF) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.