Security readout for executives and security teams
Plain-English summary
CVE-2025-31838 is a DOM-based cross-site scripting issue in the WordPress Eventbee RSVP Widget plugin through version 1.0. A successful attack could make a visitor's browser run unintended script in the site's context, potentially affecting confidentiality, integrity, and availability at low levels.
Executive priority
Treat this as a moderate WordPress hygiene issue. It is not listed as exploited in the provided evidence, but public-facing WordPress XSS can affect site trust and user sessions. Prioritize sites using the plugin publicly.
Technical view
The source bundle describes CWE-79 improper input neutralization during web page generation in eventbee-rsvp-widget. CVSS 3.1 is 6.5 with network attack vector, low complexity, low privileges required, user interaction required, changed scope, and low C/I/A impact. No fixed version is identified in the provided sources.
Likely exposure
Exposure is likely limited to WordPress sites that installed and use Eventbee RSVP Widget version 1.0 or earlier. The bundle provides no CPEs and does not confirm whether the plugin is widely deployed.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. The CVSS vector indicates exploitation requires low privileges and user interaction, so risk depends on who can influence affected page content and who visits it.
Researcher notes
Analysis is constrained to CVE and Patchstack metadata. The bundle identifies DOM-based XSS but does not include sink/source details, payload conditions, exploit maturity, or a named fixed release. Validate exposure through inventory and vendor advisory review.
Mitigation direction
- Check vendor and Patchstack guidance for fixed-version or retirement status.
- Update the plugin if a maintained fixed version is available.
- Disable or remove Eventbee RSVP Widget where it is not business-critical.
- Limit low-privileged content access until exposure is resolved.
- Monitor for advisory updates because no patch is named in the bundle.
Validation and detection
- Inventory WordPress sites for the eventbee-rsvp-widget plugin.
- Confirm installed versions and flag any version 1.0 or earlier.
- Identify public pages or widgets using Eventbee RSVP functionality.
- Review which low-privileged users can affect related content.
- Retest affected pages after update, removal, or configuration changes.
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-2025-31838 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.
SSVC decision data
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:L2.33.7PatchstackVulnerability 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
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://patchstack.com/database/Wordpress/Plugin/eventbee-rsvp-widget/vulnerability/wordpress-eventbee-rsvp-widget-plugin-1-0-cross-site-scripting-xss-vulnerability?_s_id=cveCVE reference, Patchstack · vdb-entry
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.