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CVE-2026-15425

MEDIUM
6.4
CVSS 3.1
Description
The Yoast SEO – Advanced SEO with real-time guidance and built-in AI plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Post Slug (post_name) in all versions up to, and including, 28.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires pretty permalinks to be enabled, as the exploit chain depends on get_permalink() embedding the stored percent-encoded post_name in the generated URL.

Metadata

CVE ID
CVE-2026-15425
State
PUBLISHED
Assigner
Wordfence
Reserved
2026-07-10 16:20 UTC
Published
2026-07-25 06:50 UTC
Last updated
2026-07-25 06:50 UTC
Primary CWE
CWE-79
CWE-79 Improper Neutralization of Input During Web Page Gene…
Vendor / Product
yoast / Yoast SEO – Advanced SEO with real-time guidance and built-in AI
Sources
cve.org  ·  NVD

Severity & Metrics

6.4 MEDIUM CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Affected products (1)
VendorProductPlatformVersions
yoast Yoast SEO – Advanced SEO with real-time guidance and built-in AI — 0 ≤ 28.0
Weakness (CWE)
CWESourceDescription
CWE-79 cna CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS scores (1)
ScoreSeverityVersionSourceVector
6.4 MEDIUM 3.1 cna CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
References (7)
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