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CVE Record

CVE-2022-27848: WordPress Modern Events Calendar Lite plugin <= 6.5.1 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability

Authenticated (admin+ user) Stored Cross-Site Scripting (XSS) in Modern Events Calendar Lite (WordPress plugin) <= 6.5.1

LowCVSS 3.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysislow

Security readout for executives and security teams

Plain-English summary

CVE-2022-27848 is a low-severity stored cross-site scripting issue in the WordPress Modern Events Calendar Lite plugin through 6.5.1. The cited record says exploitation requires an authenticated admin-level user, so business risk is mainly in sites with many administrators or already-compromised admin accounts.

Executive priority

Treat as routine remediation unless the site has untrusted administrators, shared admin accounts, or suspected account compromise. Prioritize alongside WordPress plugin hygiene rather than emergency response.

Technical view

The issue is CWE-79 stored XSS in Webnus Modern Events Calendar Lite <= 6.5.1. CVSS 3.1 is 3.4 with network access, low complexity, high privileges, required user interaction, changed scope, and low integrity impact. The supplied sources do not identify exploit details or a confirmed fixed version.

Likely exposure

Exposure is limited to WordPress sites running Modern Events Calendar Lite version 6.5.1 or earlier, especially where multiple admin-level users can manage event content or plugin settings.

Exploitation context

The source bundle does not cite active exploitation and KEV is false. Any abuse would require admin-level authentication and user interaction, reducing broad internet-scale risk.

Researcher notes

The provided data establishes product, affected range, CWE, CVSS vector, and privilege requirement. It does not provide a sink, parameter, proof of concept, exploit status, or explicit patched version, so validation should stay version- and configuration-focused.

Mitigation direction

  • Inventory WordPress sites using Modern Events Calendar Lite.
  • Identify installations at version 6.5.1 or earlier.
  • Check Webnus, WordPress.org, and Patchstack guidance for fixed-release instructions.
  • Limit administrator accounts to trusted users only.
  • Review recent administrator activity for suspicious content changes.

Validation and detection

  • Confirm the plugin is installed on each WordPress site.
  • Record the installed Modern Events Calendar Lite version.
  • Compare installed versions against the affected range: <= 6.5.1.
  • Check whether admin-level accounts are shared or stale.
  • Verify no untrusted script content appears in event-related fields.
Prepared
Confidence
medium
Sources
4

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-2022-27848 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
Low
CVSS
3.4 (3.1)
Known Exploited
No
Published

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

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
0Timeline events
0ADP providers
3Source links

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
3.4CVSS 3.1LowCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N1.71.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

3.4Low
CVSS 3.1 vector shape for CVE-2022-27848Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
WebnusModern Events Calendar Lite (WordPress plugin)<= 6.5.1Listed
Weakness

CWE details

CWE-79

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

CWE-79 · source CWE mapping

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.

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