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CVE Record

CVE-2021-47737: CSZ CMS 1.2.7 HTML Injection Vulnerability via Member Dashboard

CSZ CMS 1.2.7 contains an HTML injection vulnerability that allows authenticated users to insert malicious hyperlinks in message titles. Attackers can craft POST requests to the member messaging system with HTML-based links to potentially conduct phishing or social engineering attacks.

MediumCVSS 5.4Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CSZ CMS 1.2.7 has an HTML injection issue in the member messaging dashboard. A logged-in user can place malicious-looking links in message titles, creating phishing or social-engineering risk for other users who view them. This is not described as system takeover, but it can harm trust and lead to credential exposure.

Executive priority

Treat as a moderate-priority web application issue. Prioritize if CSZ CMS 1.2.7 is internet-facing, supports many users, or stores sensitive credentials. The main business risk is user deception rather than direct infrastructure compromise.

Technical view

The issue affects CSZ CMS 1.2.7. Authenticated users can submit crafted message titles containing HTML hyperlinks through the member messaging system. The CVSS 3.1 score is 5.4, with low attack complexity, low privileges required, user interaction required, and limited confidentiality and integrity impact. It is mapped to CWE-79.

Likely exposure

Exposure is limited to organizations running CSZ CMS version 1.2.7 with member messaging enabled or reachable by authenticated users. Public internet exposure increases phishing risk, but exploitation still requires a valid account and a target user interaction.

Exploitation context

A public ExploitDB reference exists, but the provided sources do not show CISA KEV listing or confirmed active exploitation. The practical abuse case is phishing or social engineering inside the CMS interface using injected HTML links.

Researcher notes

Evidence supports authenticated HTML injection in the member dashboard messaging title field for CSZ CMS 1.2.7. Sources name a public exploit reference, but do not establish active exploitation or a specific patch. Avoid assuming broader version impact without vendor confirmation.

Mitigation direction

  • Identify whether CSZ CMS 1.2.7 is deployed.
  • Restrict untrusted user access to member messaging where feasible.
  • Review vendor or project guidance for an updated fixed version.
  • Monitor member messages for suspicious HTML links or titles.
  • Educate CMS users not to trust unexpected internal links.

Validation and detection

  • Confirm the deployed CSZ CMS version from asset inventory or application metadata.
  • Check whether member messaging is enabled and accessible to low-privileged users.
  • Review message title handling for unsafe HTML rendering.
  • Search application content for unexpected hyperlinks in message titles.
  • Confirm remediation against vendor or project release guidance.
Prepared
Confidence
high
Sources
6

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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 · medium confidence lookup

CWE-79: 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 lookup
cve · low confidence lookup

CVE-2021-47737 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.4 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
5.4CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N2.32.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

5.4Medium
CVSS 3.1 vector shape for CVE-2021-47737Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
CszcmsCSZ CMS1.2.7Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-79 · source CWE mapping

Improper Neutralization of Input During Web Page Generation

Improper Neutralization of Input During Web Page Generation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.