Security readout for executives and security teams
Plain-English summary
CVE-2023-45637 is a reflected cross-site scripting issue in the WordPress EventPrime Events Calendar plugin through version 3.1.5. An attacker could trick a user into opening malicious content that runs script in the site context. The record rates it high severity, but it requires user interaction.
Executive priority
Treat this as a high-priority WordPress hygiene issue for any internet-facing site using EventPrime. The main business risk is browser-side compromise through trusted site context, especially if administrators or customers can be targeted.
Technical view
The vulnerability is unauthenticated reflected XSS, CWE-79, affecting EventPrime EventPrime - Events Calendar, Bookings and Tickets plugin <= 3.1.5. CVSS 3.1 is 7.1: network exploitable, low complexity, no privileges, user interaction required, changed scope, and low confidentiality, integrity, and availability impact.
Likely exposure
Public WordPress sites using the EventPrime plugin package eventprime-event-calendar-management at version 3.1.5 or earlier are the likely exposure. Sites without the plugin, or with unaffected versions, are not indicated as affected by the supplied sources.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Exploitation would require a user to interact with attacker-controlled content, consistent with reflected XSS and the CVSS UI:R vector.
Researcher notes
Available details identify reflected XSS but do not provide a vulnerable endpoint, parameter, proof-of-concept, or fixed version. KEV is false in the supplied data, so active exploitation should not be claimed without additional evidence.
Mitigation direction
- Inventory WordPress sites for the EventPrime plugin and installed version.
- Prioritize any EventPrime installations at version 3.1.5 or earlier.
- Check EventPrime, WordPress.org, or Patchstack guidance for the fixed release.
- Update the plugin if a vendor-supported fixed version is available.
- Disable or remove the plugin where timely remediation cannot be confirmed.
Validation and detection
- Confirm whether eventprime-event-calendar-management is installed on each WordPress site.
- Record exact plugin versions and flag 3.1.5 or earlier.
- Review vendor and Patchstack records for confirmed fixed-version information.
- Check web and security logs for unusual requests targeting EventPrime routes or parameters.
- After remediation, verify the plugin version is no longer in the affected range.
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-2023-45637 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.