CVE-2026-42562: alextselegidis plainpad · Improper Privilege Management
Affects alextselegidis plainpadSource CVE Database V5
Not known to be exploited · CVSS 8.3 High : upgrade to 1.1.1 soon.
Data as of 29 Oct 2026, 19:04 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 17% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.1.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:LExploitation evidence
Disclosed: evidence found.
CVE published 9 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Upgrade plainpad and alextselegidis/plainpad to 1.1.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| alextselegidisplainpad | Affected
| Fixed in
|
GitHubalextselegidis/plainpadpkg:github/alextselegidis/plainpadOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade Plainpad to version 1.1.1 or later, where this privilege escalation vulnerability has been patched. Since the vendor has released a fixed version, applying this official update is the recommended remediation. No additional mitigations are indicated.
Description
Plainpad is a self hosted note taking app. Prior to version 1.1.1, Plainpad allows a low-privilege authenticated user to self-escalate to administrator by submitting admin=true in PUT /api.php/v1/users/{id}. The endpoint directly persists the admin attribute from user input, and the escalated account can immediately access admin-only routes. This issue has been patched in version 1.1.1.
References
- github.com/alextselegidis/plainpad/security/advisories/GHSA-pvfv-wvpm-q6f6 (opens in a new tab)
- github.com/alextselegidis/plainpad/issues/138 (opens in a new tab)
- github.com/alextselegidis/plainpad/commit/9216a876d27b22c3d9259551636d803f7cb075fc (opens in a new tab)
- github.com/alextselegidis/plainpad/releases/tag/1.1.1 (opens in a new tab)