6.1

CVE-2023-4635: ashanjay eventon – events calendar Cross-site Scripting

CVSS: 6.1v3.1MediumModified
Published 21-10-2023Last modified 08-04-2026
Open JSON

Vulnerability summary

CVE-2023-4635 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in ashanjay eventon – events calendar. EPSS estimates a 0.61% chance of exploitation in the next 30 days, higher than 48.3% of scored vulnerabilities. 2 public exploits are recorded. Fixed in 2.2.3.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.61%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2github, reference

Timeline

  1. 21-10-2023
    PublishedVulnerability first disclosed.
  2. 08-04-2026
    Last modifiedVulnerability information updated.

Description

The EventON plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'tab' parameter in versions up to, and including, 2.2.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.61%

Chance of exploitation in the next 30 days

Percentile

48%

Versus all other CVEs

30-day change

0.00 pp

From 0.61% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.61%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • githubUnverified

    Vul

    Maturity: poc

  • referenceUnverified

    Exploit Reference (wordfence.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Ashanjay1 product
Myeventon1 product
Wordpress1 product
  • eventon-lite≤ 2.2.2 (fixed in 2.2.3)

3 vendors · 3 products

References

4 links