WordPress 4.8.26

WordPress 4.8.26 has 10 disclosed vulnerabilities in the WordSec catalog, reported between 2012 and 2025; all 10 are fixed as of August 2026. Their average CVSS score is 6.2, and the most serious one scores 8.8 out of 10. Severity breakdown: 0 critical and 3 high. 2025 was the busiest year with 2 disclosures.

The most common weakness is Cross-Site Scripting, behind 2 of the records (20%). Other recurring categories include Deserialization Of Untrusted Data, Exposure Of Sensitive Information To An Unauthorized Actor.

Every one of the 10 issues recorded for WordPress 4.8.26 has a vendor fix available, so running the current release closes all known holes.

8 independent researchers contributed these findings, one record each.

Strategic Overview

Avg CVSSMedium

6.2/ 10

Patch Coverage100%

Open

Fixed

Get automatic notifications for all WordPress 4.8.26 vulnerabilities before they are exploited.

Highest severity on recordCVSS 8.8CVE-2017-1000600

WordPress Core < 4.9 - Insecure Deserialization

Read the full analysis

Vulnerability Records

10 records


2025-09-22 00:00	WordPress <= 6.8.2 - Authenticated (Contributor+) Sensitive Information Exposure WordPress 4.8.26 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 4.8.26 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 4.8.26 <= 6.4.3	`CVE-2023-5692`	5.3 Medium	Francesco Carlucci	Yes
2021-11-25 00:00	WordPress Core < 5.8 - Dependency Confusion WordPress 4.8.26 <= 5.7.5	`CVE-2021-44223`	8.1 High	Kamil Vavra	Yes
2021-11-10 00:00	WordPress Core < 5.8.2 - ca-bundle.crt contains expired certificate DST Root CA X3 WordPress 4.8.26 5.2 – 5.8.1 · 8 branches	`N/A`	5.3 Medium	Anonymous	Yes
2019-02-19 00:00	WordPress Core <= 5.0.3 - Path Traversal and Local File Inclusion WordPress 4.8.26 <= 5.0.2	`CVE-2019-8943`	6.5 Medium	Wilfried Becard	Yes
2018-08-16 00:00	WordPress Core < 4.9 - Insecure Deserialization WordPress 4.8.26 < 4.9	`CVE-2017-1000600`	8.8 High	Sam Thomas	Yes
2018-02-05 00:00	WordPress Core < 5.0 - Denial of Service WordPress 4.8.26 < 5.0	`CVE-2018-6389`	7.5 High	Barak Tawily	Yes
2017-05-03 00:00	Wordpress Core < 5.5 - Unauthorized Password Reset via Interception WordPress 4.8.26 < 5.5	`CVE-2017-8295`	5.9 Medium	Dawid Golunski	Yes
2012-06-20 00:00	WordPress Core - Informational < 6.8 - Weak Hashing Algorithm WordPress 4.8.26 < 6.8	`CVE-2012-6707`	3.7 Low	Anonymous	Yes

Showing 1–10 of 10 reports