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Vulnerability record · CVE-2021-24880 · published 7 February 2022

CVE-2021-24880: Supportcandy cross-site scripting vulnerability

Supportcandy · Supportcandy

The SupportCandy WordPress plugin before 2.2.7 does not validate and escape the page attribute of its shortcode, which could allow users with a role as low as Contributor to perform Cross-Site Scripting attacks

5.4 CVSS 3.1 Medium EPSS 0.60% · top 53.2% CWE-79 · Cross-site scripting
5.4CVSS 3.1 base score, v2 3.5
0.60%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

The SupportCandy WordPress plugin before 2.2.7 does not validate and escape the page attribute of its shortcode, which could allow users with a role as low as Contributor to perform Cross-Site Scripting attacks

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://wpscan.com/vulnerability/09226067-0289-4d4f-9450-6f2c2ba058a0 ExploitThird Party Advisory
https://wpscan.com/vulnerability/09226067-0289-4d4f-9450-6f2c2ba058a0 ExploitThird Party Advisory

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Related vulnerabilities

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

9.8CVE-2023-1730Supportcandy sql injection vulnerabilityThe SupportCandy WordPress plugin before 3.1.5 does not validate and escape user input before using it in an SQL statement, which could allow unauthe…EPSS 41%9.8CVE-2019-11223Supportcandy unrestricted file upload vulnerabilityAn Unrestricted File Upload Vulnerability in the SupportCandy plugin through 2.0.0 for WordPress allows remote attackers to execute arbitrary code by…EPSS 8.8%8.8CVE-2023-2719Supportcandy vulnerabilityThe SupportCandy WordPress plugin before 3.1.7 does not properly sanitise and escape the `id` parameter for an Agent in the REST API before using it …EPSS 1.2%8.8CVE-2021-24879Supportcandy cross-site request forgery vulnerabilityThe SupportCandy WordPress plugin before 2.2.7 does not have CSRF check in the wpsc_tickets AJAX action, nor has any sanitisation or escaping in some…EPSS 0.61%7.5CVE-2021-24839Supportcandy missing authorization vulnerabilityThe SupportCandy WordPress plugin before 2.2.5 does not have authorisation and CSRF checks in its wpsc_tickets AJAX action, which could allow unauthe…EPSS 1.2%7.2CVE-2023-2805Supportcandy vulnerabilityThe SupportCandy WordPress plugin before 3.1.7 does not properly sanitise and escape the agents[] parameter in the set_add_agent_leaves AJAX function…EPSS 0.85%6.5CVE-2021-24843Supportcandy cross-site request forgery vulnerabilityThe SupportCandy WordPress plugin before 2.2.7 does not have CRSF check in its wpsc_tickets AJAX action, which could allow attackers to make a logged…EPSS 0.53%6.1CVE-2021-24878Supportcandy cross-site scripting vulnerabilityThe SupportCandy WordPress plugin before 2.2.7 does not sanitise and escape the query string before outputting it back in pages with the [wpsc_create…EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2021-24880), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.