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Vulnerability record · CVE-2022-23049 · published 9 February 2022

CVE-2022-23049: Exponentcms exponent cms cross-site scripting vulnerability

Exponentcms · Exponent Cms

Exponent CMS 2.6.0patch2 allows an authenticated user to inject persistent JavaScript code on the "User-Agent" header when logging in. When an administrator user visits the "User Sessions" tab, the JavaScript will be triggered allowing an attacker to compromise the administrator session.

5.4 CVSS 3.1 Medium EPSS 3.0% · top 13.0% CWE-79 · Cross-site scripting
5.4CVSS 3.1 base score, v2 3.5
3.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 6 tagged exploit
17 Jun 2026Last modified by NVD

Description

Exponent CMS 2.6.0patch2 allows an authenticated user to inject persistent JavaScript code on the "User-Agent" header when logging in. When an administrator user visits the "User Sessions" tab, the JavaScript will be triggered allowing an attacker to compromise the administrator session.

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://exponentcms.lighthouseapp.com/projects/61783/tickets/1461 ExploitIssue TrackingVendor Advisory
https://fluidattacks.com/advisories/cobain/ ExploitIssue TrackingThird Party Advisory
https://github.com/exponentcms/exponent-cms/issues/1546 ExploitIssue TrackingThird Party Advisory
https://exponentcms.lighthouseapp.com/projects/61783/tickets/1461 ExploitIssue TrackingVendor Advisory
https://fluidattacks.com/advisories/cobain/ ExploitIssue TrackingThird Party Advisory
https://github.com/exponentcms/exponent-cms/issues/1546 ExploitIssue TrackingThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2016-9021Exponentcms exponent cms improper input validation vulnerabilityExponent CMS before 2.6.0 has improper input validation in storeController.php.EPSS 1.3%9.8CVE-2016-9022Exponentcms exponent cms improper input validation vulnerabilityExponent CMS before 2.6.0 has improper input validation in usersController.php.EPSS 1.3%9.8CVE-2016-9023Exponentcms exponent cms improper input validation vulnerabilityExponent CMS before 2.6.0 has improper input validation in cron/find_help.php.EPSS 1.3%9.8CVE-2016-9025Exponentcms exponent cms improper input validation vulnerabilityExponent CMS before 2.6.0 has improper input validation in purchaseOrderController.php.EPSS 1.3%9.8CVE-2016-9026Exponentcms exponent cms improper input validation vulnerabilityExponent CMS before 2.6.0 has improper input validation in fileController.php.EPSS 1.3%9.8CVE-2016-8898Exponentcms exponent cms sql injection vulnerabilityExponent CMS version 2.3.9 suffers from a sql injection vulnerability in framework/modules/ecommerce/controllers/cartController.php.EPSS 1.8%9.8CVE-2016-8900Exponentcms exponent cms injection vulnerabilityExponent CMS version 2.3.9 suffers from a Object Injection vulnerability in framework/modules/core/controllers/expTagController.php related to change…EPSS 2.1%9.8CVE-2016-8897Exponentcms exponent cms sql injection vulnerabilityExponent CMS version 2.3.9 suffers from a sql injection vulnerability in framework/modules/help/controllers/helpController.php.EPSS 1.8%

Source: NIST National Vulnerability Database (record CVE-2022-23049), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.