Security readout for executives and security teams
Plain-English summary
This is a medium-severity CSRF issue in the WordPress Custom Header Images plugin through version 1.2.1. An attacker could potentially trick a logged-in site user into making unwanted plugin-related changes. The sources do not identify data theft, remote code execution, active exploitation, or a confirmed fixed version.
Executive priority
Treat this as a moderate website hygiene issue. It is not evidenced as actively exploited, but vulnerable WordPress plugins can create avoidable business risk. Prioritize discovery and removal or update during the next normal web maintenance cycle, faster for high-value public sites.
Technical view
CVE-2023-46636 is CWE-352 affecting David Stöckl Custom Header Images for WordPress <= 1.2.1. CVSS 3.1 is 5.4: network-reachable, low complexity, no attacker privileges, user interaction required, unchanged scope, low integrity and availability impact, no confidentiality impact.
Likely exposure
Exposure is limited to WordPress sites with the Custom Header Images plugin installed and enabled at version 1.2.1 or earlier. Asset discovery may be harder because the source bundle lists no CPEs and provides incomplete affected-version metadata beyond the advisory description.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. CSRF generally depends on a victim using an authenticated browser session and interacting with attacker-controlled content. No exploit details are provided in the cited sources.
Researcher notes
Evidence is sparse. The bundle identifies CSRF, CVSS 5.4, and affected plugin <= 1.2.1, but not the vulnerable endpoint, patched version, proof-of-concept status, or vendor remediation details. Avoid assuming impact beyond low integrity and availability effects.
Mitigation direction
- Inventory WordPress sites for the Custom Header Images plugin.
- Check vendor, WordPress, or Patchstack guidance for a fixed version.
- Update the plugin if a trusted fixed release is available.
- Disable or remove the plugin where it is not business-required.
- Limit plugin administration rights to trusted users only.
Validation and detection
- Confirm whether Custom Header Images is installed and enabled.
- Record the installed plugin version on each WordPress site.
- Flag versions 1.2.1 or earlier for remediation review.
- Review recent administrative changes for unexpected header image activity.
- Verify remediation against vendor or Patchstack guidance.
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-352: 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-2023-46636 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
- 5.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/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:N/UI:R/S:U/C:N/I:L/A:L2.82.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/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.
Cross-Site Request Forgery (CSRF)
Cross-Site Request Forgery (CSRF) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.