CVE-2022-2846: dwbooster calendar_event_multi_view Missing Authorization
Vulnerability summary
CVE-2022-2846 is a high (CVSS 7.2) Missing Authorization vulnerability in dwbooster calendar_event_multi_view. EPSS estimates a 2.70% chance of exploitation in the next 30 days, higher than 85.8% of scored vulnerabilities. 2 public exploits are recorded.
Timeline
- 16-08-2022PublishedVulnerability first disclosed.
- 15-04-2025Last modifiedVulnerability information updated.
Description
The Calendar Event Multi View WordPress plugin before 1.4.07 does not have any authorisation and CSRF checks in place when creating an event, and is also lacking sanitisation as well as escaping in some of the event fields. This could allow unauthenticated attackers to create arbitrary events and put Cross-Site Scripting payloads in it.
CVSS metrics
3 scores · 3 sources · 1 version- CVE.orgCNA4.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:NDiffers
- NVDNIST4.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:NDiffers
EPSS trend
Probability
2.70%
Chance of exploitation in the next 30 days
Percentile
86%
Versus all other CVEs
30-day change
+0.06 pp
From 2.65% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (wpscan.com)
Maturity: unknown
Calendar Event Multi View 1.4.07 - Unauthenticated Arbitrary Event Creation to Cross-Site Scripting (XSS)
Maturity: poc
Weaknesses
CWE · root cause- CWE-862Missing AuthorizationThe product does not perform an authorization check when an actor attempts to access a resource or perform an action.
- CWE-352Cross-Site Request Forgery (CSRF)The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.
- CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
Affected systems
Dwbooster1 product
- calendar_event_multi_view< 1.4.07
Unknown1 product
- calendar event multi view≥ 1.4.07, < 1.4.07
Wordpress1 product
- cp-multi-view-calendar≤ 1.4.06 (fixed in 1.4.07)
3 vendors · 3 products