WordPress 5.5.16

WordPress 5.5.16 has 5 disclosed vulnerabilities in the WordSec catalog, reported between 2012 and 2025; all 5 are fixed as of August 2026. Their average CVSS score is 5.6, and the most serious one scores 8.1 out of 10. Severity breakdown: 0 critical and 1 high. 2025 was the busiest year with 2 disclosures.

The most common weakness is Cross-Site Scripting, behind 2 of the records (40%). Other recurring categories include Exposure Of Sensitive Information To An Unauthorized Actor, Insufficient Verification Of Data Authenticity.

Every one of the 5 issues recorded for WordPress 5.5.16 has a vendor fix available, so running the current release closes all known holes.

4 independent researchers contributed these findings, one record each.

Strategic Overview

Avg CVSSMedium

5.6/ 10

Patch Coverage100%

Open

Fixed

Get automatic notifications for all WordPress 5.5.16 vulnerabilities before they are exploited.

Highest severity on recordCVSS 8.1CVE-2021-44223

WordPress Core < 5.8 - Dependency Confusion

Read the full analysis

Vulnerability Records

5 records


2025-09-22 00:00	WordPress <= 6.8.2 - Authenticated (Contributor+) Sensitive Information Exposure WordPress 5.5.16 4.7 – 6.8.2 · 22 branches	`CVE-2025-58246`	4.3 Medium	Abu Hurayra (HurayraIIT)	Yes
2025-09-22 00:00	WordPress <= 6.8.2 - Authenticated (Author+) Stored Cross-Site Scripting WordPress 5.5.16 4.7 – 6.8.2 · 23 branches	`CVE-2025-58674`	6.4 Medium	SavPhill (Savphill)	Yes
2024-04-04 00:00	WordPress Core <= 6.4.3 - Sensitive Information Exposure via redirect_guess_404_permalink WordPress 5.5.16 <= 6.4.3	`CVE-2023-5692`	5.3 Medium	Francesco Carlucci	Yes
2021-11-25 00:00	WordPress Core < 5.8 - Dependency Confusion WordPress 5.5.16 <= 5.7.5	`CVE-2021-44223`	8.1 High	Kamil Vavra	Yes
2012-06-20 00:00	WordPress Core - Informational < 6.8 - Weak Hashing Algorithm WordPress 5.5.16 < 6.8	`CVE-2012-6707`	3.7 Low	Anonymous	Yes

Showing 1–5 of 5 reports