Security readout for executives and security teams
Plain-English summary
CVE-2023-27429 is a stored cross-site scripting issue in the WordPress Jetpack CRM plugin through version 5.4.4. An authenticated administrator-level user could store script content that later runs in another user’s browser. Business urgency is moderate because exploitation requires high privileges and user interaction, but compromised admin accounts could turn this into a broader site risk.
Executive priority
Treat this as a moderate-priority WordPress plugin issue. It is not presented as actively exploited, but it affects CRM functionality and could matter more on sites with many admins, weak admin security, or sensitive customer data in WordPress.
Technical view
The issue is CWE-79 stored XSS in Automattic Jetpack CRM, package zero-bs-crm, reported for versions <= 5.4.4. CVSS 3.1 is 5.9 with network reachability, low attack complexity, high privileges required, user interaction required, and changed scope. Sources do not provide exploit details or a confirmed fixed version in the supplied bundle.
Likely exposure
Exposure is limited to WordPress installations using Jetpack CRM/zero-bs-crm at version 5.4.4 or earlier. Sites without this plugin, or running versions outside the affected range, are not indicated as affected by the supplied sources.
Exploitation context
The source bundle does not indicate CISA KEV listing or active exploitation. The vulnerability requires an authenticated admin-level user and user interaction, which reduces broad internet-scale risk. It remains relevant where admin accounts are shared, weakly protected, or already compromised.
Researcher notes
Evidence is sparse in the supplied bundle. The description identifies authenticated admin+ stored XSS and the CVSS vector, but does not include vulnerable parameters, exploit proof, remediation version, or detailed affected-version metadata beyond <= 5.4.4.
Mitigation direction
- Inventory WordPress sites for Jetpack CRM or zero-bs-crm installations.
- Prioritize moving installations away from versions <= 5.4.4.
- Check Automattic and Patchstack guidance for the confirmed fixed release.
- Restrict administrator access to trusted users only.
- Review admin account security and enable stronger authentication controls where available.
Validation and detection
- Confirm whether Jetpack CRM/zero-bs-crm is installed on each WordPress site.
- Record the installed plugin version and compare it with <= 5.4.4.
- Review privileged user accounts for unnecessary administrator access.
- Check recent CRM content changes by administrator-level users.
- Look for unexpected script-like content in CRM-managed fields or records.
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-2023-27429 mapping review
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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.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.