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CVE-2026-39767: WordPress WPBase Cache plugin <= 5.5.6 - Denial of Service Attack vulnerability

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-06 · updated 2026-10-06
• Weakness: CWE-770

Description

Subscriber Denial of Service Attack in WPBase Cache <= 5.5.6 versions.

Affected products

• baseapp WPBase Cache: through 5.5.6

References

• https://patchstack.com/database/wordpress/plugin/wpbase-cache/vulnerability/wordpress-wpbase-cache-plugin-5-5-6-denial-of-service-attack-vulnerability?_s_id=cve

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