Security readout for executives and security teams
Plain-English summary
Kentico Xperience sites using affected 13.x hotfix levels may allow malicious HTML to be inserted into form-submission emails. The risk is mainly to staff or users who receive those emails, because their email client may render unsafe content. This is not reported as actively exploited in the provided sources.
Executive priority
Treat as a near-term patching and exposure-review item, especially for public-facing forms that email staff. It is not a known actively exploited issue from the provided sources, but it creates a realistic email-security risk and should be addressed during normal vulnerability remediation cycles.
Technical view
CVE-2022-50684 is an HTML injection issue in Kentico Xperience form emails. Unencoded form field values can be included in generated submission emails, enabling attacker-controlled HTML rendering in recipient email clients. The provided CVSS is 6.1, with network attack vector, no privileges required, and user interaction required.
Likely exposure
Exposure is most likely on Kentico Xperience deployments at or below 13.0.71 that use online forms sending submission emails. Public-facing forms increase likelihood because unauthenticated users can submit data. The source bundle’s affected version metadata is incomplete, so confirm exact versions against Kentico and VulnCheck guidance.
Exploitation context
The attacker would need to submit crafted form content and rely on a recipient viewing the resulting email in a client that renders the injected HTML. Sources do not indicate CISA KEV listing or active exploitation. Impact is limited to confidentiality and integrity, with no availability impact in the CVSS data.
Researcher notes
The advisory maps to CWE-79 and CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. The core issue is unsafe encoding of form values in email generation. Avoid assuming browser-based stored XSS beyond the email-rendering context described by the sources.
Mitigation direction
- Check Kentico’s hotfix page for the applicable Xperience update.
- Upgrade affected Kentico Xperience installations beyond the vulnerable hotfix level where vendor guidance confirms remediation.
- Review forms that send submission emails and reduce unnecessary HTML rendering where possible.
- Monitor vendor and advisory sources for updated affected-version or remediation details.
Validation and detection
- Inventory Kentico Xperience instances and record exact hotfix levels.
- Identify sites using forms that send submission notification emails.
- Confirm whether any instance is at or below 13.0.71.
- Verify remediation status against Kentico hotfix documentation and VulnCheck advisory details.
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-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 lookupCVE-2022-50684 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
- 6.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N2.82.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.1MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- Kentico DevNet HotfixesCVE reference · vendor-advisory, patch
- VulnCheck Advisory: Kentico Xperience <= 13.0.71 Form Emails HTML InjectionCVE 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.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.