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Vulnerability record · CVE-2021-24517 · published 6 September 2021

CVE-2021-24517: Trumani stop spammers cross-site scripting vulnerability

Trumani · Stop Spammers

The Stop Spammers Security | Block Spam Users, Comments, Forms WordPress plugin before 2021.18 does not escape some of its settings, allowing high privilege users such as admin to set Cross-Site Scripting payloads in them even when the unfiltered_html capability is disallowed

5.4 CVSS 3.1 Medium EPSS 0.62% · top 52.2% CWE-79 · Cross-site scripting
5.4CVSS 3.1 base score, v2 3.5
0.62%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 Stop Spammers Security | Block Spam Users, Comments, Forms WordPress plugin before 2021.18 does not escape some of its settings, allowing high privilege users such as admin to set Cross-Site Scripting payloads in them even when the unfiltered_html capability is disallowed

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

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Related vulnerabilities

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

9.8CVE-2022-4120Trumani stop spammers vulnerabilityThe Stop Spammers Security | Block Spam Users, Comments, Forms WordPress plugin before 2022.6 passes base64 encoded user input to the unserialize() P…EPSS 18%6.1CVE-2023-2488Trumani stop spammers vulnerabilityThe Stop Spammers Security | Block Spam Users, Comments, Forms WordPress plugin before 2023 does not sanitise and escape various parameters before ou…EPSS 0.52%6.1CVE-2021-24245Trumani stop spammers cross-site scripting vulnerabilityThe Stop Spammers WordPress plugin before 2021.9 did not escape user input when blocking requests (such as matching a spam word), outputting it in an…EPSS 5.7%4.8CVE-2023-2489Trumani stop spammers vulnerabilityThe Stop Spammers Security | Block Spam Users, Comments, Forms WordPress plugin before 2023 does not sanitise and escape some of its settings, which …EPSS 0.44%6.1CVE-2026-42897Microsoft Exchange Server XSS enables spoofingMicrosoft Exchange Server and Exchange Server Subscription Edition fail to neutralize input during web page generation, a cross-site scripting flaw (…KEVEPSS 0.52%analysed6.1CVE-2025-48700Zimbra Classic UI stored XSS via crafted email HTMLZimbra Collaboration Suite Classic UI fails to properly sanitize HTML content in email messages, allowing crafted tag structures and attribute values…KEVEPSS 1.7%analysed6.1CVE-2025-66376Zimbra Collaboration Classic UI stored XSS via CSS @import in emailZimbra Collaboration Suite 10 before 10.0.18 and 10.1 before 10.1.13 allows stored cross-site scripting in the Classic UI through CSS @import directi…KEVEPSS 20%analysed6.1CVE-2025-68461Roundcube Webmail XSS via SVG animate tagRoundcube Webmail before 1.5.12 and 1.6 before 1.6.12 is vulnerable to cross-site scripting through the animate tag in an SVG document. Because the f…KEVEPSS 27%analysed

Source: NIST National Vulnerability Database (record CVE-2021-24517), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.