CVE-2021-24245
Stop Spammers < 2021.9 - Reflected Cross-Site Scripting (XSS)
The 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 attribute after sanitising it to remove HTML tags, which is not sufficient and lead to a reflected Cross-Site Scripting issue.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- 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 WordPress plugin before 2021.9 did not escape user input when blocking requests (such as matching a spam word), outputting it in an attribute after sanitising it to remove HTML tags, which is not sufficient and lead to a reflected Cross-Site Scripting issue.
- Record
CVE-2021-24245- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
Stop Spammers < 2021.9 - Reflected Cross-Site Scripting (XSS)
The 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 attribute after sanitising it to remove HTML tags, which is not sufficient and lead to a reflected Cross-Site Scripting issue.
- Record
CVE-2021-24245- Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-11159 No score
The 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 attribute after sanitising it to remove HTML tags, which is not sufficient and lead to a reflected Cross-Site Scripting issue.
- Record
EUVD-2021-11159- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7vc8-gc65-8vpf No score
The Stop Spammers WordPress plugin before 2021.9 did not escape user input when blocking requests...
The 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 attribute after sanitising it to remove HTML tags, which is not sufficient and lead to a reflected Cross-Site Scripting issue.
- Record
GHSA-7vc8-gc65-8vpf- Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | WordPress Plugin Stop Spammers 2021.8 - 'log' Reflected Cross-site Scripting (XSS) | 2021-05-19 |
| Nuclei | WordPress Stop Spammers <2021.9 - Cross-Site Scripting |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, Nuclei, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-24245 is a medium vulnerability (CVSS 6.1) in Trumani Stop Spammers, published May 5, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 5.72%, the 93rd percentile. No source names a fixed version.