CVE-2026-25519
CRITICAL EPSS 38.5%
Published Feb 4, 20264mo ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Published Feb 4, 2026 4mo ago
Last Modified Jun 17, 2026 2w ago
Description
OpenSlides is a free, web based presentation and assembly system for managing and projecting agenda, motions and elections of an assembly. Prior to version 4.2.29, OpenSlides supports local logins with username and password or an optionally configurable single sign on with SAML via an external IDP. For users synced to OpenSlides via an external IDP, there is an incorrect access control regarding the local login of these users. Users can successfully login using the local login form and the OpenSlides username of a SAML user and a trivial password. This password is valid for all SAML users. This issue has been patched in version 4.2.29.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
38.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-284
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| openslides | openslides | * | ≥4.2.5 – <4.2.29 |
References 4
- github.com https://github.com/OpenSlides/OpenSlides/releases/tag/4.2.29
- github.com https://github.com/OpenSlides/OpenSlides/security/advisories/GHSA-vv4h-8wfc-pf8c
- github.com https://github.com/OpenSlides/openslides-auth-service/commit/70c1aa9f5e1db59ec120ecce98d1c1169350a4ee
- github.com https://github.com/OpenSlides/openslides-auth-service/pull/889
Remediation
- github.com https://github.com/OpenSlides/OpenSlides/security/advisories/GHSA-vv4h-8wfc-pf8c
- github.com https://github.com/OpenSlides/openslides-auth-service/commit/70c1aa9f5e1db59ec120ecce98d1c1169350a4ee