Is GD Security Headers safe to use?

Laskyr does not give safety verdicts. No known unpatched vulnerabilities in the latest version (1.9). As of 2026-11-04. 3 issues are on record for older versions; version 1.9 or newer fixes all of them that state a fix. Keep GD Security Headers on the latest version (1.9) and remove it if you do not use it.

Which versions of GD Security Headers are vulnerable?

Known issues on record (newest first): Reflected cross-site scripting (XSS) (1.8 and older, fixed in 1.9); SQL injection (1.7 and older, fixed in 1.7.1); Reflected cross-site scripting (XSS) (1.6.1 and older, fixed in 1.7). The full list with sources is on this page.

What is the latest version of GD Security Headers?

1.9, according to wordpress.org (last updated 2026-05-12). It has 1,000+ active installs.

What should I do if my GD Security Headers is out of date?

Take a backup, then update it from Dashboard > Updates (or run wp plugin update gd-security-headers). If you cannot update right away, deactivate it until you can. If you think the site was already attacked, run a free scan at https://laskyr.com/scan.

Plugins · gd-security-headers · data as of 2026-11-04

Is GD Security Headers safe? Known vulnerabilities and latest version

Latest version: 1.9
Last updated: 2026-05-12
Active installs: 1,000+
Known issues on record: 3
Unpatched in latest: 0
Tested up to WP: 7.0.8 · PHP 7.4+

Configure various security-related HTTP headers, including CSP, XSS, Referrer Policy and more. — by Milan Petrovic

What to do

Update to the latest version (1.9). Anything older than 1.9 has at least one known issue listed below. 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.
If you ran a vulnerable version and something looks off (spam pages, strange admins, redirects), run the free scan.

With WP-CLI: wp plugin get gd-security-headers --field=version shows what you run; wp plugin update gd-security-headers updates it.

Check your version

Known vulnerabilities

3 on record, newest first. “Affected” is the version range the source gives; “fixed in” is the version the source names, or (marked *) the first wordpress.org release after the last affected version.

high 7.1 CVE-2026-57403 · published 2026-07-13

Reflected cross-site scripting (XSS) in GD Security Headers (1.8 and older)

Affected: 1.8 and older
Fixed in: 1.9
Access needed (per CVSS): No login needed; someone on the site has to click a link or open a page
Range from: CVE record (the advisory publisher) · score by Patchstack

Details from the advisory

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Milan Petrovic GD Security Headers gd-security-headers allows Reflected XSS.This issue affects GD Security Headers: from n/a through <= 1.8.

NVD CVE-2026-57403 Patchstack advisory

high 7.2 CVE-2023-46821 · published 2023-11-06

SQL injection in GD Security Headers (1.7 and older)

Affected: 1.7 and older
Fixed in: 1.7.1
Access needed (per CVSS): Needs an admin-level account
Range from: CVE record (the advisory publisher) · score by NVD

Details from the advisory

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Milan Petrovic GD Security Headers allows auth. (admin+) SQL Injection.This issue affects GD Security Headers: from n/a through 1.7.

NVD CVE-2023-46821 Patchstack advisory

medium 6.1 CVE-2023-40330 · published 2023-09-27

Reflected cross-site scripting (XSS) in GD Security Headers (1.6.1 and older)

Affected: 1.6.1 and older
Fixed in: 1.7
Access needed (per CVSS): No login needed; someone on the site has to click a link or open a page
Range from: CVE record (the advisory publisher) · score by NVD

Details from the advisory

Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in Milan Petrovic GD Security Headers plugin <= 1.6.1 versions.

NVD CVE-2023-40330 Patchstack advisory

Recent activity

2026-05-12 — latest release on wordpress.org (1.9).
2026-07-13 — Reflected cross-site scripting (XSS) disclosed (CVE-2026-57403), fixed in 1.9.
2023-11-06 — SQL injection disclosed (CVE-2023-46821), fixed in 1.7.1.
2023-09-27 — Reflected cross-site scripting (XSS) disclosed (CVE-2023-40330), fixed in 1.7.

Free. We check the CVE feeds every day and email you only when a new issue for GD Security Headers (gd-security-headers) is published or a fix ships. Unsubscribe in one click.

Browse vulnerabilities

Types found in this plugin: Cross-site scripting (XSS) (2) · SQL injection (1)

Where this data comes from

Version, last update, installs: wordpress.org/plugins/gd-security-headers (Plugins API), fetched 2026-11-04.
Vulnerabilities: 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.
Each record links to its CVE page and to the original advisory (Wordfence, Patchstack or WPScan) where there is one. We only list a CVE here when its references or its advisory name this exact plugin, so a few real issues may be missing; none should be about a different plugin. Spot an error? Email Daniel.

Badge for your site or docs (states facts with a date, not a verdict):

<a href="https://laskyr.com/plugins/gd-security-headers"><img src="https://laskyr.com/plugins/gd-security-headers/badge.svg" alt="GD Security Headers vulnerability status"></a>

← Check another plugin · Free hacked-site scan

Is GD Security Headers safe? Known vulnerabilities and latest version

No known unpatched vulnerabilities in the latest version (1.9)

What to do

Check your version

Known vulnerabilities

Reflected cross-site scripting (XSS) in GD Security Headers (1.8 and older)

SQL injection in GD Security Headers (1.7 and older)

Reflected cross-site scripting (XSS) in GD Security Headers (1.6.1 and older)

Recent activity

Get an email when GD Security Headers has a new vulnerability

Browse vulnerabilities

Where this data comes from