VulnTideExploited vulnerabilities, by vendor. Data as of .
Not in CISA KEVReported exploited: VulnCheck KEV since Published CVSS 8.0 highEPSS 64.5% probability of exploitation in 30 days
WordPress

CVE-2022-21662: Stored XSS in WordPress

Is it exploited?

Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of .

VulnCheck KEV lists it since . It cites 1 public report, the first from .

How likely is exploitation in the next 30 days?
64.5%

EPSS score, percentile 99.2 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?
8.0 High

CVSS v3.1 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

Advisories and patches (3)

Which versions are affected?

Affected

  • < 5.8.3

Versions by product

Source: CISA KEV 2026.10.29, as of ; VulnCheck KEV, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.

Description

Stored XSS in WordPress

WordPress is a free and open-source content management system written in PHP and paired with a MariaDB database. Low-privileged authenticated users (like author) in WordPress core are able to execute JavaScript/perform stored XSS attack, which can affect high-privileged users. This has been patched in WordPress version 5.8.3. Older affected versions are also fixed via security release, that go back till 3.7.37. We strongly recommend that you keep auto-updates enabled. There are no known workarounds for this issue.

Source: CVE List, as of . About the data.

What to do

Advisories and patches

This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Versions by product, as listed in the CVE record (1 product)
WordPress wordpress-develop
StatusVersions
Affected< 5.8.3

Source: CVE List, as of . About the data.

Weakness

CWE-79
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.

Timeline

DateEvent
CVE record published
CVE record last updated

References

3

Known exploited WordPress vulnerabilities

  • CVE-2026-87902: WordPress Core Remote File Inclusion Vulnerability (added )
  • CVE-2026-60137: WordPress Core SQL Injection Vulnerability (added )
  • CVE-2026-63030: WordPress Core Interpretation Conflict Vulnerability (added )
  • CVE-2019-9978: WordPress Social Warfare Plugin Cross-Site Scripting (XSS) Vulnerability (added )
  • CVE-2020-11738: WordPress Snap Creek Duplicator Plugin File Download Vulnerability (added )