CVE-2026-89271: WP-BusinessDirectory arbitrary file upload vulnerability

medium 5.3 plugin closed published 2026-10-13

Affected versions: 4.0.2 and older
Fixed in: unknown
Severity: Medium · CVSS 5.3
Active installs: closed
Type: Arbitrary file upload

What an attacker needs

Access: None. No account or login is needed.

CVSS vector (score by CISA ADP): CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

What to do now

Replace WP-BusinessDirectory. A closed plugin gets no updates through WordPress, so this hole stays open.
Deactivate and delete it once you have a replacement (Plugins → Deactivate → Delete). Deactivating alone leaves its files on the server.
Not sure which version you run? Check your version against every known WP-BusinessDirectory issue.
If you ran an affected version and something looks off (new admin users, spam pages, redirects), run the free scan below.

The advisory

The WP-BusinessDirectory WordPress plugin through 4.0.2 does not restrict the type or destination of files saved by an unauthenticated upload handler, allowing unauthenticated attackers to write files with arbitrary content to arbitrary locations, though not to execute code on a default server configuration.

Description from the CVE record, published by WPScan (the CVE Numbering Authority), via the NVD entry for CVE-2026-89271.

References

NVD CVE-2026-89271 nvd.nist.gov
WPScan advisory wpscan.com

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Where this data comes from

CVE record, score and references: NIST National Vulnerability Database (NVD), checked 2026-11-04. This product uses data from the NVD API but is not endorsed or certified by the NVD.
Versions and install counts: wordpress.org/plugins/wp-businessdirectory (Plugins API), fetched 2026-11-04.
The summary, “what an attacker needs” and “what to do” sections are our plain-English reading of the record and the plugin's release history; the quoted description is the record's own text. Spot an error? Email Daniel.