CVE-2021-24135
WP Customer Reviews < 3.4.3 - Multiple Unauthenticated and Low Priv Authenticated Stored XSS
Unvalidated input and lack of output encoding in the WP Customer Reviews WordPress plugin, versions before 3.4.3, lead to multiple Stored Cross-Site Scripting vulnerabilities allowing remote attackers to inject arbitrary JavaScript code or HTML.
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
Unvalidated input and lack of output encoding in the WP Customer Reviews WordPress plugin, versions before 3.4.3, lead to multiple Stored Cross-Site Scripting vulnerabilities allowing remote attackers to inject arbitrary JavaScript code or HTML.
- Record
CVE-2021-24135- 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
WP Customer Reviews < 3.4.3 - Multiple Unauthenticated and Low Priv Authenticated Stored XSS
Unvalidated input and lack of output encoding in the WP Customer Reviews WordPress plugin, versions before 3.4.3, lead to multiple Stored Cross-Site Scripting vulnerabilities allowing remote attackers to inject arbitrary JavaScript code or HTML.
- Record
CVE-2021-24135- Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-11049 No score
Unvalidated input and lack of output encoding in the WP Customer Reviews WordPress plugin, versions before 3.4.3, lead to multiple Stored Cross-Site Scripting vulnerabilities allowing remote attackers to inject arbitrary JavaScript code or HTML.
- Record
EUVD-2021-11049- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-x4q4-7cpx-gg5v No score
Unvalidated input and lack of output encoding in the WP Customer Reviews WordPress plugin,...
Unvalidated input and lack of output encoding in the WP Customer Reviews WordPress plugin, versions before 3.4.3, lead to multiple Stored Cross-Site Scripting vulnerabilities allowing remote attackers to inject arbitrary JavaScript code or HTML.
- Record
GHSA-x4q4-7cpx-gg5v- Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-24135 is a medium vulnerability (CVSS 6.1) in Bompus Wp Customer Reviews, published March 18, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.08%, the 65th percentile. No source names a fixed version.