WordPress WP Post Author plugin <= 3.9.1 - SQL Injection vulnerability

published 2026-06-26 4 mo ago modified 2026-10-25 14 d ago also EUVD-2026-39758

cvss: 8.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 29%
public exploits: 0; none known

Contributor SQL Injection in WP Post Author <= 3.9.1 versions.

Patch / fix

fixed in 1

AF themes WP Post Author 3.10.0

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 4 mo ago (2026-06-26)

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L

Affected products

AF themes WP Post Author

Classification

Weakness

CWE-89 Improper Neutralization of Special Elements used in an SQL Command

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/wordpress/plugin/wp-post-author/vulnerability/wordpress-wp-post-author-plugin-3-9-1-sql-injection-vu
vdb-entry

Sources

CVE List CVE-2026-57643
NVD CVE-2026-57643

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary