CVE-2021-24517
Stop Spammers Security < 2021.18 - Authenticated Stored XSS
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
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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
- Record
CVE-2021-24517- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
Stop Spammers Security < 2021.18 - Authenticated Stored XSS
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
- Record
CVE-2021-24517- Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-11429 No score
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
- Record
EUVD-2021-11429- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-fp6q-wmwj-3m9p No score
The Stop Spammers Security | Block Spam Users, Comments, Forms WordPress plugin before 2021.18...
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
- Record
GHSA-fp6q-wmwj-3m9p- Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-24517 is a medium vulnerability (CVSS 5.4) in Trumani Stop Spammers, published September 6, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.62%, the 50th percentile. No source names a fixed version.