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CVE-2017-17093: wp-includes/general-template.php in WordPress before 4.9.1 does not properly restrict the lang attribute of an HTML element, which might allow attackers to conduct XSS attacks via the language setting

medium Affects WordPress core. Feed 2026.10.29.1, updated 2026-10-28; published ; advisory modified .

wp-includes/general-template.php in WordPress before 4.9.1 does not properly restrict the lang attribute of an HTML element, which might allow attackers to conduct XSS attacks via the language setting

Package
WordPress core WordPress
Affected versions
<4.9.1
Fixed in
4.9.1
Severity
medium  CVSS 5.4
Exploitation
not on CISA KEV · EPSS 2% (80.3th percentile)
Published
2017-12-02
Source
nvd

References

CWE-79
NVD recordWordPress core advisories

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