CVE-2026-111399: MapSVG SQL injection vulnerability

high 8.5 published 2026-10-16

Affected versions: 8.16.1 and older
Fixed in: 8.16.2
Latest version: 8.16.3
Severity: High · CVSS 8.5
Active installs: 1,000+
Type: SQL injection

What an attacker needs

Access: A low-level account on the site, such as a subscriber or customer (per the CVSS score).

CVSS vector (score by Patchstack): CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L

What to do now

Update MapSVG to 8.16.2 or newer (the latest is 8.16.3): Dashboard → Updates, or Plugins → “update now”.
If you cannot update right away, deactivate it until you can.
Turn on auto-updates for it: Plugins → “Enable auto-updates” on its row.
Not sure which version you run? Check your version against every known MapSVG issue. With WP-CLI: wp plugin get mapsvg-lite-interactive-vector-maps --field=version.
If you ran an affected version and something looks off (new admin users, spam pages, redirects), run the free scan below.

The advisory

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in PT Norther Lights Production MapSVG mapsvg-lite-interactive-vector-maps allows SQL Injection.This issue affects MapSVG: from n/a through 8.16.1.

Description from the CVE record, published by Patchstack (the CVE Numbering Authority), via the NVD entry for CVE-2026-111399.

References

NVD CVE-2026-111399 nvd.nist.gov
Patchstack advisory patchstack.com

Ran an affected version? Check your site for signs of a hack

The free scan reads the public side of your site and looks for spam pages, hidden redirects, injected scripts and blacklist entries. No login, no install, about a minute.

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/mapsvg-lite-interactive-vector-maps (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.