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CVE-2018-10100

• Severity: medium (CVSS 6.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-04-16 · updated 2026-06-17
• Weakness: CWE-601

Description

Before WordPress 4.9.5, the redirection URL for the login page was not validated or sanitized if forced to use HTTPS.

Affected products

• Debian Linux: 8.0, 9.0
• WordPress: before 4.9.5 — fixed in 4.9.5

How to fix

Upgrade to a fixed version: WordPress 4.9.5. Check the vendor advisory for mitigations.

References

• http://www.securitytracker.com/id/1040836
• https://codex.wordpress.org/Version_4.9.5
• https://core.trac.wordpress.org/changeset/42892
• https://github.com/WordPress/WordPress/commit/14bc2c0a6fde0da04b47130707e01df850eedc7e
• https://lists.debian.org/debian-lts-announce/2018/04/msg00031.html
• https://wordpress.org/news/2018/04/wordpress-4-9-5-security-and-maintenance-release/
• https://wpvulndb.com/vulnerabilities/9054
• https://www.debian.org/security/2018/dsa-4193
• http://www.securitytracker.com/id/1040836
• https://codex.wordpress.org/Version_4.9.5
• https://core.trac.wordpress.org/changeset/42892
• https://github.com/WordPress/WordPress/commit/14bc2c0a6fde0da04b47130707e01df850eedc7e

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