CVE-2026-84220: CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') in Kirki
Description
The Kirki WordPress plugin before 6.3.2 does not prevent shortcodes held in comments from being executed when it renders them, and displays comments regardless of their moderation status, allowing unauthenticated visitors to run shortcodes registered on the site and to read private custom fields of the page being viewed.
CVSS v3.1
Score 4.8medium
Affected software
Kirki
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-84220 is an injection vulnerability (CWE-74) in the Kirki WordPress plugin versions prior to 6.3.2. The plugin does not prevent execution of shortcodes embedded in comments and displays comments regardless of moderation status. This flaw enables unauthenticated users to run shortcodes registered on the site and access private custom fields of the page being viewed.
Potential Impact
An unauthenticated attacker can execute shortcodes via comments and read private custom fields on the affected WordPress site. This leads to partial confidentiality and integrity impact but does not affect availability. The CVSS 3.1 base score is 4.8 (medium severity), reflecting network attack vector, high attack complexity, no privileges required, no user interaction, and limited confidentiality and integrity impact.
Mitigation Recommendations
Upgrade Kirki to version 6.3.2 or later where this vulnerability is fixed. No other mitigation details are provided. Patch status is not explicitly confirmed in the input data, but the affected versions are prior to 6.3.2, indicating that 6.3.2 contains the fix.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-01T11:50:22.082Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ac8aa8d2cdf04f6564066be
Added to database: 10/09/2026, 08:49:17 UTC
Last enriched: 10/09/2026, 09:03:30 UTC
Last updated: 10/09/2026, 18:57:32 UTC
Views: 18
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.