Security readout for executives and security teams
Plain-English summary
CVE-2023-35884 is an unauthenticated reflected cross-site scripting issue in the WordPress EventPrime plugin through version 3.0.5. An attacker could potentially trick a user into interacting with a crafted link and run script in that user’s browser. The business risk is highest for public WordPress sites using the affected plugin.
Executive priority
Treat this as a high-priority WordPress exposure if EventPrime is deployed publicly. It is not presented as actively exploited in the bundle, but public-facing reflected XSS can support account compromise, brand abuse, and session-level impact when users can be lured to malicious links.
Technical view
The source bundle describes CWE-79 reflected XSS in eventprime-event-calendar-management/EventPrime <= 3.0.5. CVSS 3.1 is 7.1 with network attack vector, low complexity, no privileges required, user interaction required, changed scope, and low confidentiality, integrity, and availability impacts.
Likely exposure
Exposure is likely limited to WordPress installations running EventPrime/eventprime-event-calendar-management version 3.0.5 or earlier on public or user-accessible pages. The bundle does not identify affected CPEs, a fixed version, or whether all EventPrime deployments expose the vulnerable parameter or route.
Exploitation context
The bundle marks KEV as false and provides no cited evidence of active exploitation. Because the issue is unauthenticated but requires user interaction, realistic abuse would depend on social engineering and whether the vulnerable EventPrime surface is reachable on the target site.
Researcher notes
Evidence is strongest for vulnerability classification, affected plugin name, version ceiling, and CVSS vector. Evidence is incomplete for fixed version, vulnerable endpoint details, proof-of-concept status, and exploitation in the wild. Avoid assuming broader EventPrime versions or operational mitigations not named by vendor sources.
Mitigation direction
- Inventory WordPress sites for EventPrime/eventprime-event-calendar-management installations.
- Confirm whether installed versions are 3.0.5 or earlier.
- Check EventPrime, WordPress.org, or Patchstack guidance for the fixed release.
- Update, disable, or remove the plugin based on vendor guidance.
- Consider provider-supported virtual patching where immediate update is not possible.
Validation and detection
- Verify each WordPress site’s EventPrime plugin version from administrative inventory.
- Confirm public pages using EventPrime are identified and owned.
- Check security tools and web logs for suspicious XSS-related alerts.
- After remediation, confirm the plugin is updated, disabled, or removed.
- Document affected sites, owners, versions, and remediation dates.
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-2023-35884 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.
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.