CVE-2026-35173
Chyrp Lite is an ultra-lightweight blogging engine. Prior to 2026.01, an IDOR / Mass Assignment issue exists in the Post model that allows authenticated users with post editing permissions (Edit Post, Edit Draft, Edit Own Post, Edit Own Draft) to modify posts they do not own and do not have permission to edit. By passing internal class properties such as id into the post_attributes payload, an attacker can alter the object being instantiated. As a result, further actions are performed on another user’s post rather than the attacker’s own post, effectively enabling post takeover. This vulnerability is fixed in 2026.01.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 6.5
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- EPSS probability
- 0.17%
- CWE
- CWE-639, CWE-914
- Published
- 2026-04-06
- Last modified
- 2026-04-07
Affected products
- xenocrat chyrp-lite
Weakness type
Related vulnerabilities
- CVE-2026-68527 — Concrete CMS 8.3.0 through 9.5.2 is vulnerable to an authorization bypass through user-controlled key (cross-calendar IDOR) in the Calendar event edit dialog
- CVE-2026-88877 — Traefik v3.7.0 Authentication Bypass via from-to-www-redirect
- CVE-2026-88865 — AVideo Missing Authorization via getRestream.json.php
- CVE-2026-80354 — Apache Camel K: Camel K Builder trait mavenProfiles ValueSources resolve tenant-named secrets in operator namespace
- CVE-2026-82582 — An authorization bypass vulnerability exists in SHIRASAGI through a user-controlled key, which may...
- CVE-2026-84062 — BurgerEditor 3.0.0 through 3.4.0 contains an issue with authorization bypass through...
- CVE-2026-87997 — Open WebUI: Any authenticated user can inject chats into another user's folder via chat completions
- CVE-2026-87994 — Open WebUI: Channel members can overwrite another member's message via the chat completions endpoint