CVE-2021-24276
Contact Form by Supsystic < 1.7.15 - Reflected Cross-Site scripting (XSS)
The Contact Form by Supsystic WordPress plugin before 1.7.15 did not sanitise the tab parameter of its options page before outputting it in an attribute, leading 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 Contact Form by Supsystic WordPress plugin before 1.7.15 did not sanitise the tab parameter of its options page before outputting it in an attribute, leading to a reflected Cross-Site Scripting issue
- Record
CVE-2021-24276- 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
Contact Form by Supsystic < 1.7.15 - Reflected Cross-Site scripting (XSS)
The Contact Form by Supsystic WordPress plugin before 1.7.15 did not sanitise the tab parameter of its options page before outputting it in an attribute, leading to a reflected Cross-Site Scripting issue
- Record
CVE-2021-24276- Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-11190 No score
The Contact Form by Supsystic WordPress plugin before 1.7.15 did not sanitise the tab parameter of its options page before outputting it in an attribute, leading to a reflected Cross-Site Scripting issue
- Record
EUVD-2021-11190- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-p8j5-xg8p-f3xm No score
The Contact Form by Supsystic WordPress plugin before 1.7.15 did not sanitise the tab parameter...
The Contact Form by Supsystic WordPress plugin before 1.7.15 did not sanitise the tab parameter of its options page before outputting it in an attribute, leading to a reflected Cross-Site Scripting issue
- Record
GHSA-p8j5-xg8p-f3xm- 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 Contact Form 1.7.14 - Reflected Cross-Site Scripting (XSS) | 2021-09-28 |
| Nuclei | WordPress Supsystic Contact Form <1.7.15 - Cross-Site Scripting |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products | 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-2021-24276 is a medium vulnerability (CVSS 6.1) in Supsystic Contact Form By Supsystic, published May 5, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 16.0%, the 96th percentile. No source names a fixed version.