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CVE Record

CVE-2025-22635: WordPress Eventer - WordPress Event & Booking Manager Plugin plugin < 3.9.9 - Reflected Cross Site Scripting (XSS) vulnerability

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in imithemes Eventer eventer allows Reflected XSS.This issue affects Eventer: from n/a through < 3.9.9.

HighCVSS 7.1Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2025-22635 is a reflected cross-site scripting issue in the WordPress Eventer booking plugin before version 3.9.9. Affected public WordPress sites could expose visitors or administrators to script execution after user interaction. Sources do not state active exploitation.

Executive priority

Treat as a high-priority WordPress plugin update for internet-facing sites. It is not confirmed as actively exploited in the provided sources, but no-login reflected XSS can still create business risk through targeted users and brand-facing pages.

Technical view

The CVE describes CWE-79 improper input neutralization during web page generation in imithemes Eventer. It is rated CVSS 3.1 7.1 high: network reachable, low complexity, no privileges required, user interaction required, changed scope, and low confidentiality, integrity, and availability impact.

Likely exposure

Exposure is limited to WordPress installations using the Eventer plugin below 3.9.9. Public-facing event or booking pages increase practical risk, especially where administrators use the same browser session to manage WordPress.

Exploitation context

The source bundle does not include exploit code, exploitation reports, or CISA KEV listing. Risk depends on whether attackers can cause a targeted user to interact with attacker-controlled content that reaches the vulnerable page generation path.

Researcher notes

The provided evidence identifies the affected range and CVSS vector but does not include vulnerable parameters, proof of concept, or exploit telemetry. Avoid assuming broader Eventer or WordPress impact beyond plugin versions before 3.9.9.

Mitigation direction

  • Inventory WordPress sites for the Eventer plugin and installed version.
  • Update Eventer to version 3.9.9 or later where available.
  • If immediate update is unavailable, review vendor guidance and reduce plugin exposure.
  • Apply normal WordPress hardening, including least-privilege admin accounts.
  • Monitor web and WordPress logs for suspicious reflected XSS probes.

Validation and detection

  • Confirm whether Eventer is installed on each WordPress site.
  • Verify all Eventer installations are version 3.9.9 or later.
  • Review public event and booking routes for exposure.
  • Check security monitoring for XSS-related alerts or unusual requests.
  • Document any sites requiring vendor guidance or compensating controls.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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 · medium confidence lookup

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.

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cve · low confidence lookup

CVE-2025-22635 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
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

Official CVE source material

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.

1CVSS vectors
3Timeline events
1ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
7.1CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L2.83.7Patchstack

Vulnerability scoring details

Base CVSS 3.1 score

7.1High
CVSS 3.1 vector shape for CVE-2025-22635Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
imithemesEventereventer, 0unaffected
Weakness

CWE details

CWE-79

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.