6.5

CVE-2023-4620: unknown booking calendar Cross-site Scripting

CVSS: 6.5v3.1MediumModified
Published 16-10-2023Last modified 02-05-2025
Open JSON

Vulnerability summary

CVE-2023-4620 is a medium (CVSS 6.5) Cross-site Scripting vulnerability in unknown booking calendar. EPSS estimates a 0.56% chance of exploitation in the next 30 days, higher than 45.5% of scored vulnerabilities. 1 public exploit is recorded. Fixed in 9.7.3.1.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (wordfence)
EPSS score
0.56%
0%100%
Low · +0.08 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 16-10-2023
    PublishedVulnerability first disclosed.
  2. 02-05-2025
    Last modifiedVulnerability information updated.

Description

The Booking Calendar WordPress plugin before 9.7.3.1 does not sanitize and escape some of its booking from data, allowing unauthenticated users to perform Stored Cross-Site Scripting attacks against administrators

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.56%

Chance of exploitation in the next 30 days

Percentile

46%

Versus all other CVEs

30-day change

+0.08 pp

From 0.47% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.56%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (wpscan.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Unknown1 product
Wordpress1 product
  • booking≤ 9.7.3 (fixed in 9.7.3.1)
Wpbookingcalendar1 product

3 vendors · 3 products

References

2 links