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Admidio Review

Depends

Should I use Admidio?

Free, self-hosted open-source membership management software for clubs, associations, groups, and organizations. - admidio.org

· 13 hours ago

A genuinely free fit for volunteer-run clubs that can self-host and track dues manually. Skip it if you need online payment collection, vendor support, or a full association management system.

Confidence

Medium. Based on 20+ public sources including Reddit threads, review directories, and 2026 CVE databases.

Ratings

  • Value for money
  • Ease of use
  • Feature depth
  • Support qualityCommunity forum only; no quality evidence
  • Security posture

Pricing

$0

Self-hosted

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed
Free tierYes

Best for

  • Volunteer-run clubs and associations
  • Small nonprofits tracking member lists
  • Teams with someone to self-host
  • Groups needing roles and subgroups

Not for

  • Orgs needing built-in dues and payment processing
  • Non-technical groups with nobody to run a server
  • Large associations needing full AMS features
  • Anyone expecting vendor support or SLAs

Gotchas - check before you buy

high

CVE-2026-32756 is a remote code execution vulnerability; patch immediately if internet-exposed

high

Broken access control fixed only in version 5.0.12; running older versions is risky

medium

No native dues collection; Reddit users cite missing PayPal and automated payment support

low

'Free' means you pay for hosting; third-party Admidio hosting is a paid add-on

Pros and cons

Pros

  • Completely free, open-source, self-hosted
  • Purpose-built for clubs, associations, and organizations
  • Groups and subgroups easy to create, per users
  • Flagged as ideal for small to mid-sized nonprofits
  • Member data stays on your own server

Cons

  • Users report no built-in payment support for membership fees
  • You must host, update, and secure the server yourself
  • Multiple security vulnerabilities reported in 2026
  • Support is community forum only

Sources & method

- 12 sources - Multiple 2026 CVEs, including remote code execution — keep patched to the latest release.

official x3review x5security x3news x1
  • CVE-2026-32756 — Remote Code Execution, Remote code execution vulnerability in Admidio.
  • CVE-2026-82658 — Broken Access Control, Versions before 5.0.12 contain a broken access control vulnerability.
  • CVE-2026-47226 — Missing Authorization, Affected versions vulnerable to missing authorization check.

Key stats

  • Value for money: 5/5

    Rating

  • $0

    Starting price

  • 12

    Sources

  • Analyzed

  • Value for money: 5/5. Completely free and open source
  • Ease of use: 3/5. Groups easy; self-hosting takes technical skill
  • Feature depth: 3/5. Solid member management; payments missing
  • Support quality. Community forum only; no quality evidence
  • Security posture: 2/5. Multiple 2026 CVEs including RCE
  • $0 Starting price Self-hosted, open source
  • Yes Free tier Entire product is free
  • Open source License Community-developed on GitHub
  • 4+ Known CVEs 2026 advisories, incl. RCE

Pricing

Self-hosted

$0

  • Full membership management
  • You provide hosting and maintenance

Security

Multiple 2026 CVEs, including remote code execution — keep patched to the latest release.

  • CVE-2026-32756 — Remote Code ExecutionRemote code execution vulnerability in Admidio.⁶
  • CVE-2026-82658 — Broken Access ControlVersions before 5.0.12 contain a broken access control vulnerability.⁷
  • CVE-2026-47226 — Missing AuthorizationAffected versions vulnerable to missing authorization check.⁸

What users say

Users find member and group management easy but consistently flag the missing payment and dues features.

“Haven't seen a payment function for membership fees. Groups, subgroups, etc. can all be created easi”
Reddit, r/Austria
“Admidio, which was promising, but they don't appear to have the payment support through PayPal”
Reddit, r/selfhosted
“I'm quite new to admidio and especially to membership fee. I could use some tips.”
Admidio community forum

Alternatives

Compare Admidio with each alternative.

  • AssoConnect

    Association software with a free tier, no hosting hassle

Full analysis

Based on 20+ public sources including Reddit threads, review directories, and 2026 CVE databases.

Free self-hosted membership manager for clubs — easy groups, but no built-in dues payments and you run the server.

Methodology

Based on 20+ public sources including Reddit threads, review directories, and 2026 CVE databases.

Read how a report is made.

Sources

  1. Admidio official siteadmidio.org
    official
  2. Admidio on GitHubgithub.com
    official
  3. Admidio — Capterra listingcapterra.com
    review
  4. Membership Management Software Advice — Reddit r/selfhostedreddit.com
    review
  5. Mitgliederverwaltung discussion — Reddit r/Austriareddit.com
    review
  6. CVE-2026-32756: Admidio RCE Vulnerability — SentinelOnesentinelone.com
    security
  7. CVE-2026-82658 — CVE Recordcve.org
    security
  8. CVE-2026-47226 — Snyksecurity.snyk.io
    security
  9. Top Admidio Alternatives — G2g2.com
    review
  10. Free Membership Management Software — PayBeew.paybee.io
    review
  11. Membership fee forum thread — Admidio Forumadmidio.org
    official
  12. Admidio Hosting — Rad Web Hostingradwebhosting.com
    news

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