Security readout for executives and security teams
Plain-English summary
CVE-2023-36503 is an authenticated cross-site scripting issue in the WordPress MaxButtons plugin through version 9.5.3. A contributor-level user could cause script to run for another user who views affected content. Business risk is higher on sites with many content contributors or weak account governance.
Executive priority
Treat this as a moderate-priority web application hygiene issue. Prioritize remediation for externally facing WordPress sites with multiple contributors, public registration, or recent account compromise concerns. It is not shown as actively exploited in the provided sources.
Technical view
The source bundle describes CWE-79 XSS in Max Foundry WordPress Button Plugin MaxButtons <=9.5.3. CVSS 3.1 is 6.5 with network attack vector, low complexity, low privileges required, user interaction required, changed scope, and low confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to WordPress sites using MaxButtons at version 9.5.3 or earlier. The attack requires an authenticated contributor-or-higher account and user interaction, so internet-facing sites with public registration, many contributors, or compromised author accounts deserve priority.
Exploitation context
The bundle does not show CISA KEV listing or cited evidence of active exploitation. The risk model is authenticated XSS: an attacker needs site access at contributor level or above, then another user must interact with affected plugin-rendered content or workflow.
Researcher notes
The public bundle identifies the vulnerability class, privilege requirement, affected plugin/version boundary, and CVSS vector, but does not include exploit details, indicators, or a named fixed version. Avoid assuming active exploitation or a specific patch unless confirmed from vendor or Patchstack guidance.
Mitigation direction
- Inventory WordPress sites for the MaxButtons plugin and installed version.
- For versions <=9.5.3, check vendor or Patchstack guidance for a corrected release.
- Limit contributor-or-higher access to trusted accounts until remediation is complete.
- Disable or remove the plugin where business use is not required.
- Review WordPress accounts for stale, shared, or unexpectedly privileged users.
Validation and detection
- Confirm whether MaxButtons is installed on each WordPress site.
- Record the plugin version and flag any instance at <=9.5.3.
- Review contributor, author, editor, and administrator account lists.
- Check whether public registration or self-service contributor access is enabled.
- Document remediation status and any compensating access controls.
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-2023-36503 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
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/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:L/UI:R/S:C/C:L/I:L/A:L2.33.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/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.