CVE-2021-24498

Calendar Event Multi View vulnerability

CVSS

6.1

EPSS

3.5%

EPSS pct

88th

Exploited

No known

The Calendar Event Multi View WordPress plugin before 1.4.01 does not sanitise or escape the 'start' and 'end' GET parameters before outputting them in the page (via php/edit.php), leading to a reflected Cross-Site Scripting issue.

Affected vendor

Dwbooster

Affected product

Calendar Event Multi View

CVSS vector

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

Weakness type (CWE)

CWE-79 — Cross-Site Scripting (XSS)

Published

2021-08-02

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity.

Its EPSS score of 3.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2021-24498

Confirm whether Dwbooster Calendar Event Multi View is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2021-24498.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-24498

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-24498 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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