Security readout for executives and security teams
This issue affects the My SMTP Contact v1.1.1 plugin for GetSimple CMS. If an administrator is logged in and visits a malicious third-party site, an attacker may change the plugin’s SMTP settings. That could disrupt contact form email delivery or redirect mail handling, depending on the configured environment. Exposure appears limited to GetSimple CMS sites using the My SMTP Contact plugin version 1.1.1. Risk is highest where administrators stay logged in while browsing external sites. The provided affected-product metadata is incomplete, so inventory validation is important. Treat this as a targeted web administration risk rather than a broad infrastructure emergency. Prioritize sites that rely on contact forms for customer or lead communications, because SMTP setting changes can affect message delivery and trust. Mitigation focus: Check GetSimple CMS and plugin guidance for a fixed or recommended version.; Inventory sites for My SMTP Contact plugin version 1.1.1.; Disable or replace the plugin if no maintained fix is available..
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.
CVE-2021-29400 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
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.