4.8

CVE-2023-6164: mainwp Cross-site Scripting

CVSS: 4.8v3.1MediumModified
Published 22-11-2023Last modified 08-04-2026
Open JSON

Vulnerability summary

CVE-2023-6164 is a medium (CVSS 4.8) Cross-site Scripting vulnerability in mainwp. EPSS estimates a 0.40% chance of exploitation in the next 30 days, higher than 32.2% of scored vulnerabilities. Fixed in 4.5.1.3.

Overall risk
19/100
0100
Low · default modelHow is this calculated?
CVSS score
4.8/10
010
Medium · v3.1 (NVD)
EPSS score
0.40%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 22-11-2023
    PublishedVulnerability first disclosed.
  2. 08-04-2026
    Last modifiedVulnerability information updated.

Description

The MainWP Dashboard – WordPress Manager for Multiple Websites Maintenance plugin for WordPress is vulnerable to CSS Injection via the ‘newColor’ parameter in all versions up to, and including, 4.5.1.2 due to insufficient input sanitization. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary CSS values into the site tags.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.40%

Chance of exploitation in the next 30 days

Percentile

32%

Versus all other CVEs

30-day change

0.00 pp

From 0.40% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.40%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Mainwp2 products
  • mainwp≤ 4.5.1.2
  • mainwp dashboard: self-hosted wordpress management for agencies≤ 4.5.1.2
Wordpress1 product
  • mainwp≤ 4.5.1.2 (fixed in 4.5.1.3)

2 vendors · 3 products

References

3 links