The wp_http_validate_url function in wp-includes/http.php in WordPress before 4.4.2 allows remote attackers to conduct server-side request…

Description

The wp_http_validate_url function in wp-includes/http.php in WordPress before 4.4.2 allows remote attackers to conduct server-side request forgery (SSRF) attacks via a zero value in the first octet of an IPv4 address in the u parameter to wp-admin/press-this.php.

Scores

EPSS (exploitation in 30 days)

7.9% · top 5.3% of all CVEs (2 Nov 2026)

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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.6.

Weakness

• n/a

Affected products

• n/a

  • affected n/a

References (9)

• https://codex.wordpress.org/Version_4.4.2 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 1034933 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• https://wpvulndb.com/vulnerabilities/8376 (opens in a new tab)x_refsource_MISCx_transferred
• https://core.trac.wordpress.org/changeset/36435 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 82454 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• https://wordpress.org/news/2016/02/wordpress-4-4-2-security-and-maintenance-release/ (opens in a new tab)x_refsource_CONFIRMx_transferred
• DSA-3472 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• https://hackerone.com/reports/110801 (opens in a new tab)x_refsource_MISCx_transferred
• https://news.ycombinator.com/item?id=20433070 (opens in a new tab)x_refsource_MISCx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Record last updated 5 Aug 2024, 23:24 UTC.