Security readout for executives and security teams
Plain-English summary
This issue affects the WordPress ShiftController Employee Shift Scheduling plugin up to version 4.9.23. It is a stored cross-site scripting flaw, meaning malicious script content could be saved in the site and later run in another user’s browser. Business risk depends on whether the plugin is installed and who can access affected admin functions.
Executive priority
High priority for any WordPress property using ShiftController. This is not supported as an internet-wide emergency from the provided evidence, but stored XSS in administrative scheduling workflows can affect trust, data integrity, and session safety.
Technical view
CVE-2023-29424 is reported as CWE-79 stored XSS in Plainware ShiftController Employee Shift Scheduling for WordPress through 4.9.23. The bundle describes authenticated admin+ exposure, while the CVSS vector lists PR:N and UI:R, so privilege requirements are inconsistent in the provided evidence.
Likely exposure
Exposure is likely limited to WordPress sites running the ShiftController plugin at version 4.9.23 or earlier. Organizations not using this plugin are not exposed based on the provided sources.
Exploitation context
No CISA KEV listing is provided, and no cited source states active exploitation. The issue requires user interaction under the CVSS vector. Treat exploitation status as unconfirmed unless vendor, Patchstack, or threat intelligence sources provide newer evidence.
Researcher notes
The source bundle has an important inconsistency: the description says authenticated admin+ stored XSS, while CVSS says PR:N. Validate the vulnerable path and required role from primary vendor or Patchstack details before refining exposure or detection logic.
Mitigation direction
- Inventory WordPress sites for the ShiftController plugin.
- Upgrade beyond 4.9.23 if a vendor-fixed version is available.
- Check Plainware or Patchstack guidance for confirmed remediation details.
- Disable or remove the plugin where it is not required.
- Limit WordPress administrative access to trusted users only.
Validation and detection
- Confirm whether package shiftcontroller is installed on each WordPress site.
- Record installed plugin versions and flag versions 4.9.23 or earlier.
- Verify remediation by confirming a newer fixed version or plugin removal.
- Review WordPress admin logs for suspicious privileged changes.
- Inspect ShiftController-managed content for unexpected script-like 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-2023-29424 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
- High
- CVSS
- 7.1 (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: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:C/C:L/I:L/A:L2.83.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.1HighVector: CVSS:3.1/AV:N/AC:L/PR:N/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.