6.8

CVE-2026-84021: unknown bold page builder Cross-site Scripting

CVSS: 6.8v3.1MediumDeferred
Published 05-09-2026Last modified 06-09-2026
Open JSON

Vulnerability summary

CVE-2026-84021 is a medium (CVSS 6.8) Cross-site Scripting vulnerability in unknown bold page builder. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 36% of scored vulnerabilities. 1 public exploit is recorded. Fixed in 5.9.8.

Overall risk
37/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.8/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.43%
0%100%
Low · +0.20 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 05-09-2026
    PublishedVulnerability first disclosed.
  2. 06-09-2026
    Last modifiedVulnerability information updated.

Description

The Bold Page Builder WordPress plugin before 5.9.8 does not properly validate a link URL before outputting it in an HTML attribute, relying on a filter that can be evaded, allowing users with the Contributor role and above to inject arbitrary web scripts that execute when a user clicks the affected link.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.43%

Chance of exploitation in the next 30 days

Percentile

36%

Versus all other CVEs

30-day change

+0.20 pp

From 0.24% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.43%

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
  • bold-page-builder< 5.9.8

2 vendors · 2 products

References

2 links