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Slim SEO

Slim SEO - AI SEO Plugin, Lightweight, Fast & Automated
by Anh Tran · 70,000+ active installs · Checked 4 Nov 2026
Healthy

Healthy: maintained, last release 20 Oct 2026, 47 releases in 24 months, no unpatched vulnerabilities.

85/ 100 Canary Score
Sub-scores for Slim SEO
Ownership100
Maintenance100
Security65
Support70
Reputation85

How the score works

Quick answers

Is Slim SEO still maintained?
Yes. Last release 20 Oct 2026, 47 releases in the last 24 months. 20 Oct 2026 · wordpress.org
Who owns Slim SEO, and has it changed hands?
No change recorded. Main committer rilwis since Dec 2018. 4 Nov 2026 · SVN log
Was Slim SEO removed from wordpress.org?
No. Listed on wordpress.org as of 4 Nov 2026. 4 Nov 2026 · wordpress.org
Is Slim SEO safe?
7 known vulnerabilities, all fixed (latest in 4.11.2). Not on the exploited list. 15 Oct 2026 · Wordfence Intelligence
Is the latest Slim SEO update safe to install?
No ownership change before 4.11.4. No one-star spike after it. 20 Oct 2026 · Release history

Active signals

Facts we detected, with links to the source.

No open risk signals. Signals appear here when we detect an ownership change, closure, vulnerability or decline.

Ownership timeline

Who commits to the plugin's code on wordpress.org, over time.

Committers and their active periods
plugin-master30 Dec 2018 to 30 Dec 2018, 1 commits
rilwis31 Dec 2018 to 20 Oct 2026, 217 commits

2 committers recorded. No ownership change since 2018.

Maintenance

Last release
15 days ago
Releases, 24 months
47
Tested up to
7.1 current
Requires PHP
7.4 supported 8.2+
Releases per quarter
Releases per quarter for Slim SEO
Q1 20244
Q2 20246
Q3 20241
Q4 20249
Q1 20255
Q2 20257
Q3 20252
Q4 20257
Q1 20266
Q2 20265
Q3 20265
Q4 20265

Last release 20 Oct 2026. Tested with WordPress 7.1 (current).

Reputation

Last 90 days: 5.0 (1 review). Lifetime: 4.7.

Average rating per quarter for Slim SEO
Q1 20255.0
Q2 20254.8
Q3 20255.0
Q4 20255.0
Q1 20263.7
Q2 20263.0
Q3 20265.0

Average rating stayed at 5.0 between Q1 2025 and Q3 2026.

Rating distribution
5 star121
4 star4
3 star2
2 star4
1 star5
Latest low reviews

Security record

7 vulnerabilities in 24 months, all patched (latest fixed in 4.11.2).

Show 7 patched vulnerabilities
PublishedIssueCVSSAffectedFixed inDays to patch
15 Oct 2026Slim SEO <= 4.11.1 - Authenticated (Subscriber+) Arbitrary Shortcode Execution via 'Biographical Info' User Meta5.4<= 4.11.14.11.2Patched before disclosure
11 Sep 2026Slim SEO - AI SEO Plugin, Lightweight, Fast & Automated <= 4.10.0 - Authenticated (Contributor+) Insecure Direct Object Reference4.3<= 4.10.04.10.1Patched before disclosure
3 Aug 2026Slim SEO <= 4.9.10 - Insecure Direct Object Reference to Authenticated (Contributor+) Arbitrary Post Meta Disclosure4.3<= 4.9.104.9.11Patched before disclosure
30 Jun 2026Slim SEO <= 4.9.8 - Authenticated (Contributor+) Insufficient Authorization to Private Content Disclosure via 'object.ID' Parameter4.3<= 4.9.84.9.9Patched before disclosure
25 Jun 2026Slim SEO - A Fast & Automated SEO Plugin For WordPress <= 4.6.2 - Missing Authorization4.3<= 4.6.24.7.0Patched before disclosure
12 Jun 2025Slim SEO <= 4.5.4 - Authenticated (Administrator+) SQL Injection4.9<= 4.5.44.5.5Patched before disclosure
20 May 2025Slim SEO <= 4.5.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via slim_seo_breadcrumbs Shortcode6.4<= 4.5.34.5.4Patched before disclosure

Changelog mentions of security fixes: 4.10.1 (authorization).

Sources: Wordfence Intelligence, CISA Known Exploited Vulnerabilities, readme changelogs.

Support

67% of 3 support threads resolved in the last 2 months.

Momentum

70,000+ active installs. History builds with each weekly snapshot.

Weekly downloads, last 27 weeks
Weekly downloads for Slim SEO
4 May 20263,700
11 May 202628,545
18 May 20267,808
25 May 20263,681
1 Jun 202628,490
8 Jun 20265,718
15 Jun 202625,369
22 Jun 20268,860
29 Jun 20266,562
6 Jul 20265,240
13 Jul 202630,681
20 Jul 20266,505
27 Jul 202629,823
3 Aug 20269,169
10 Aug 20264,553
17 Aug 20263,893
24 Aug 202632,090
31 Aug 20267,014
7 Sep 202632,491
14 Sep 20268,911
21 Sep 20265,390
28 Sep 202632,154
5 Oct 20268,893
12 Oct 202655,790
19 Oct 202636,026
26 Oct 20269,651
2 Nov 20261,118

Weekly downloads over the last 4 weeks are 58% above the 27-week average.

Healthier alternatives

Same job, rated Healthy, higher Canary Score and at least 10,000 installs. Never sponsored.

ThinkRank SEOScore 93 · 20,000+Dynamic XML Sitemaps Generator forScore 93 · 20,000+XML Sitemap Generator for GoogleScore 92 · 1,000,000+The SEO FrameworkScore 92 · 200,000+CrawlWP SEOScore 92 · 30,000+

Facts

Version4.11.4
AuthorAnh Tran
Added31 Dec 2018
Last updated20 Oct 2026
Active installs70,000+
Requires WordPress6.6
Tested up to7.1.4
Requires PHP7.4
CategoryMarketing & Advertising > SEO & Search Optimization
Tagsseo, header, schema, redirection, xml sitemap

Other plugins by this author: MB Custom Post Types & Custom Taxonomies, Admin Taxonomy Filter, Falcon - Cache, Performance, Security, Cleanup, and Tweaks, MB Elementor Integration, MB Relationships, MB Rest API, MB FacetWP Integration, MB Yoast SEO Integration, Better 404 Redirect To Homepage, MB Text Limiter, eRocket, MB Beaver Builder Integration

Questions

Is Slim SEO still maintained?

Yes. Last release 20 Oct 2026, 47 releases in the last 24 months.

Who owns Slim SEO, and has it changed hands?

No change recorded. Main committer rilwis since Dec 2018.

Was Slim SEO removed from wordpress.org?

No. Listed on wordpress.org as of 4 Nov 2026.

Is Slim SEO safe?

7 known vulnerabilities, all fixed (latest in 4.11.2). Not on the exploited list.

Is the latest Slim SEO update safe to install?

No ownership change before 4.11.4. No one-star spike after it.

Data: wordpress.org Plugins API, plugins SVN and Trac, wordpress.org reviews and support forum, Wordfence Intelligence, CISA KEV, NVD.Plugin data refreshed 4 Nov 2026.Report a data issue