# CVE-2026-111916: Admidio information disclosure in RSS weblinks feed

Source: https://junglewise.ai/threats/cve-2026-111916-admidio-before-5-0-16-contains-an-information-disclosure  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-17. Updated: 2026-10-17  
License: CC BY 4.0 with a link back

CVE-2026-111916 · Severity: medium · CVSS 5.3 · Published 2026-10-17

Admidio is a free web-based user and organization management system often used by clubs and associations. The vulnerability allows an unauthenticated attacker to access private weblinks that administrators restricted to specific member roles by requesting the RSS feed, exposing link names, URLs, descriptions, and categories meant to be confidential.

Technologies: [Admidio](https://junglewise.ai/threats/technologies/admidio). Vendors: [Admidio](https://junglewise.ai/threats/vendors/admidio).

## Quick answers

**Is CVE-2026-111916 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-111916 being exploited in the wild.

**How severe is CVE-2026-111916?** Medium severity, with a CVSS score of 5.3, published 17 October 2026.

**Which products and versions are affected?** Admidio before 5.0.16.

**Is there a fix for CVE-2026-111916?** Yes: fixed in 5.0.16. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-111916 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-111916?** Check whether you run Admidio at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 5.0.16

## Technical details

The rss/links.php endpoint fails to apply the category_view role-visibility filter that the HTML weblinks view enforces via getAllVisibleCategories(). An unauthenticated attacker (guest role) can request the RSS feed with the organization parameter and receives all weblink categories regardless of role restrictions. The vulnerability requires the default configuration (weblinks_module_enabled=1, enable_rss=1) and affects versions up to 5.0.15.

## Affected products

- Admidio Admidio before 5.0.16

## Timeline

- 2026-10-17: disclosed
- 2026-10-02: advisory

## References

- [https://github.com/Admidio/admidio/security/advisories/GHSA-552r-jc93-7qr3](https://github.com/Admidio/admidio/security/advisories/GHSA-552r-jc93-7qr3)
- [https://www.vulncheck.com/advisories/admidio-before-5.0.16-information-disclosure-via-rss-links-php-weblinks-feed](https://www.vulncheck.com/advisories/admidio-before-5.0.16-information-disclosure-via-rss-links-php-weblinks-feed)

## Related threats

- [Admidio improper access control in event registration](https://junglewise.ai/threats/cve-2026-117554-admidio-before-5-0-17-contains-an-improper-access-control)
- [Admidio broken access control in inventory module](https://junglewise.ai/threats/cve-2026-111914-admidio-from-5-0-11-before-5-0-16-contains-a-broken-access)
- [Admidio authorization bypass via pdfl export mode](https://junglewise.ai/threats/cve-2026-111913-admidio-from-5-0-0-before-5-0-16-contains-an-authorization)
- [Admidio forum topic authorization bypass in ForumService::saveTopic()](https://junglewise.ai/threats/cve-2026-111912-admidio-from-5-0-0-before-5-0-16-contains-an-insecure-direct)
- [Admidio broken access control in role member assignment](https://junglewise.ai/threats/cve-2026-109329-admidio-4-3-2-through-4-3-17-and-5-0-0-before-5-0-15-contains-a)