CVE-2021-24640
Gutenslider < 5.2.0 - Contributor+ Stored XSS
The WordPress Slider Block Gutenslider plugin before 5.2.0 does not escape the minWidth attribute of a Gutenburg block, which could allow users with a role as low as contributor to perform Cross-Site Scripting attacks
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 WordPress Slider Block Gutenslider plugin before 5.2.0 does not escape the minWidth attribute of a Gutenburg block, which could allow users with a role as low as contributor to perform Cross-Site Scripting attacks
- Record
CVE-2021-24640- 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
Gutenslider < 5.2.0 - Contributor+ Stored XSS
The WordPress Slider Block Gutenslider plugin before 5.2.0 does not escape the minWidth attribute of a Gutenburg block, which could allow users with a role as low as contributor to perform Cross-Site Scripting attacks
- Record
CVE-2021-24640- Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-11552 No score
The WordPress Slider Block Gutenslider plugin before 5.2.0 does not escape the minWidth attribute of a Gutenburg block, which could allow users with a role as low as contributor to perform Cross-Site Scripting attacks
- Record
EUVD-2021-11552- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-36hv-f25w-387h No score
The WordPress Slider Block Gutenslider plugin before 5.2.0 does not escape the minWidth attribute...
The WordPress Slider Block Gutenslider plugin before 5.2.0 does not escape the minWidth attribute of a Gutenburg block, which could allow users with a role as low as contributor to perform Cross-Site Scripting attacks
- Record
GHSA-36hv-f25w-387h- 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-2021-24640 is a medium vulnerability (CVSS 5.4) in Eedee Wordpress Slider Block Gutenslider, published September 20, 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.