CVE-2026-9833

Tag Groups < 2.2.0 - Reflected XSS via 'tag_groups_task' Parameter

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.

We have discovered 1,185 live websites that are affected by CVE-2026-9833.

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Affected Software

Product  Tag Groups
Category Wordpress Plugins
Vulnerable Domains1,185 live websites (87% of Tag Groups install base)
Vulnerable Versions
  • from 0 through 2.2
Vulnerable Versions Count38 versions ( 97% of all versions)


Common Weakness Enumeration

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



Details

  • Published - Jul 20, 2026
  • Updated - Jul 20, 2026

Credits

  • Juyaz (finder)
  • WPScan (coordinator)

Website Distribution by Country

Number of websites using CVE-2026-9833
United States383 websites


Germany170 websites
France76 websites
Japan55 websites
Italy50 websites
Russia45 websites
GB45 websites
Canada27 websites
Netherlands24 websites
Spain22 websites

Website Distribution by TLD

Number of websites using CVE-2026-9833
.com472 websites
.de101 websites
.org86 websites
.net54 websites
.fr38 websites
.it34 websites
.ru34 websites
.info21 websites
.nl21 websites
.eu15 websites

Vulnerable Versions

Vulnerable versions are highlighted in red

Websites affected by CVE-2026-9833

Top websites that are affected by CVE-2026-9833. Please click on the "Contact us" link to get more information.
DomainCountryRankContacts
****.edu United States***,***
**********.cl Chile***,***
**.***.br United States***,***
*****.***********.name Germany***,***
*********.com United States***,***
************.com United States***,***
********.**********.edu United States***,***
**********.com United States***,***
**********.********.es Spain***,***
*************.com United States***,***
See full domain list

FAQ

CVE-2026-9833 is Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Tag Groups
A total of 1,185 websites have been identified as vulnerable to CVE-2026-9833, based on global website indexing conducted by WebTechSurvey.
The Tag Groups is affected by the CVE-2026-9833 vulnerability.
Tag Groups versions up to 2.2 are vulnerable to CVE-2026-9833.
CVE-2026-9833 is resolved in version 2.2 of Tag Groups.