Security readout for executives and security teams
Plain-English summary
This is a stored cross-site scripting issue in a WordPress Mailchimp forms plugin. It requires an authenticated editor-level user or higher and user interaction, so it is not an unauthenticated mass-compromise issue. A successful attack could affect site visitors or administrators who view the stored content.
Executive priority
Treat as a moderate WordPress hygiene issue. Prioritize sites using this plugin with multiple editors, external contributors, or high-value administrator sessions. It is less urgent than unauthenticated remote compromise, but it should be remediated in the normal patch cycle.
Technical view
CVE-2023-47545 is CWE-79 stored XSS in Fatcat Apps Forms for Mailchimp by Optin Cat, identified for plugin versions up to 2.5.4. CVSS 3.1 is 5.9 with network attack vector, low complexity, high privileges required, user interaction required, changed scope, and low confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to WordPress sites running Forms for Mailchimp by Optin Cat at version 2.5.4 or earlier with editor-level plugin access.
Exploitation context
The source bundle does not show CISA KEV listing or cited active exploitation. The vulnerability requires authenticated editor-level access and a victim interaction path, reducing broad internet-scale risk but still mattering on sites with many content contributors.
Researcher notes
The bundle identifies authenticated editor-plus stored XSS and version scope up to 2.5.4, but does not include exploit details, a fixed version, or vendor mitigation text. Default affected metadata is sparse, so validation should rely on installed plugin name, package slug mailchimp-wp, and version evidence.
Mitigation direction
- Inventory WordPress sites for the mailchimp-wp plugin and record installed versions.
- Check Fatcat Apps or WordPress plugin guidance for a fixed version or official mitigation.
- Update the plugin if an official fixed release is available.
- Disable or remove the plugin where it is not business-critical.
- Restrict editor-level access to trusted accounts only.
- Review recent editor account activity for suspicious form or content changes.
Validation and detection
- Confirm whether Forms for Mailchimp by Optin Cat is installed on each WordPress site.
- Verify whether installed versions are 2.5.4 or earlier.
- Review which users have editor-level or higher privileges.
- Check vendor and Patchstack records for current remediation status.
- Inspect relevant plugin-managed content for unexpected scripts or markup.
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-2023-47545 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
- 5.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A: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:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L1.73.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.9MediumVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
Source materials
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.