What is CVE-2026-9833?

CVE-2026-9833 is a high-severity vulnerability in Tag Groups Is The Advanced Way To Display Your Taxonomy Terms, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2026-07-20.

How severe is CVE-2026-9833?

High severity. CVSS v3 base score is 7.1 out of 10.

Is CVE-2026-9833 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Tag Groups Is The Advanced Way To Display Your Taxonomy Terms

CVE-2026-9833

The Tag Groups is the Advanced Way to Display Your Taxonomy Terms WordPress plugin before 2.2.0 does not properly escape one of its AJAX parameters before reflecting it in the response body served with an HTML content type, allowing unauthenticated attackers to execute arbitrary JavaScript in the browser of a logged-in user with `edit_pages` capability (Editor or higher) who is tricked into following a crafted link.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (20.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L.

Affected products

Unknown Tag Groups Is The Advanced Way To Display Your Taxonomy Terms — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

aj2108/CVE-2026-9833

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-9833?: CVE-2026-9833 is a high-severity vulnerability in Tag Groups Is The Advanced Way To Display Your Taxonomy Terms, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2026-07-20.
How severe is CVE-2026-9833?: High severity. CVSS v3 base score is 7.1 out of 10.
Is CVE-2026-9833 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.