8.8

CVE-2026-86799: unknown forms Cross-site Scripting

CVSS: 8.8v3.1HighDeferred
Published 14-10-2026Last modified 14-10-2026
Open JSON

Vulnerability summary

CVE-2026-86799 is a high (CVSS 8.8) Cross-site Scripting vulnerability in unknown forms. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 30% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
45/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.38%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 14-10-2026
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

The Forms WordPress plugin before 3.0.2 does not sanitise submitted form values on storage, nor escape them before outputting them on the form submissions screen in the administration dashboard, allowing unauthenticated users to inject arbitrary web scripts that will execute in the browser of any administrator viewing the submissions.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.38%

Chance of exploitation in the next 30 days

Percentile

30%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

14-10-202620-10-2026
EPSS score
0.38%

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

1 vendor · 1 product

References

1 links