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CVE-2021-24640: 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

medium Affects gutenslider (WordPress plugin). Feed 2026.10.29.1, updated 2026-10-28; published ; advisory modified .

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

Package
gutenslider (WordPress plugin) WordPress
Affected versions
<5.2.0
Fixed in
5.2.0
Severity
medium  CVSS 5.4
Exploitation
not on CISA KEV · EPSS 1% (49.8th percentile)
Published
2021-09-20
Source
nvd

References

CWE-79
NVD recordgutenslider (WordPress plugin) advisories

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