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Presenton API missing authentication

Affects the Presenton desktop (Electron) build when the DISABLE_AUTH variable is unset, which turns authentication off by default. No vendor rating or fix is listed in the facts.

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

Published
Last modified
Published
Not listed in CISA KEV
29/100 · provisional
Default setups
Fix
Fix or patch referenced
None on Exploit-DB, Metasploit or GitHub

Summary

Presenton, an AI presentation generation application, is affected through its API, which lacks proper authentication checks on some functionality. A remote attacker could access or manipulate that functionality without credentials, potentially exposing data or enabling unauthorized actions.

Read the original description

A weakness has been identified in Presenton up to 0.9.11-beta. Affected by this issue is some unknown functionality of the component API. This manipulation causes missing authentication. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 0.9.12-beta can resolve this issue. Patch name: 44c8a61122b21f17642d717b0c4d6f2c54c0f180. You should upgrade the affected component.

What to do

  • Check every install: default setups are affected.

  • Apply the patch listed under Evidence.

Timeline

  1. CVE published
  2. First seen by cve.now

Affected versions

  • n/a Presenton

    0.9.11-beta

Evidence 9

  1. Advisory
  2. Advisory
  3. Advisory
  4. Advisory
  5. Patch
  6. Patch
  7. Patch
  8. Exploit
  9. Repository

Corrections

None so far.

Something wrong on this page? Report an error. Every fix is listed here.

FAQ

Questions about CVE-2026-120191

What does this mean?

The local Presenton API accepts requests without authentication. A page loaded in a browser inside the same user session can read presentations and admin provider settings that include plaintext API keys, overwrite configuration, and consume paid image-generation quota.Source: github.com

Am I affected, and how do I check?

The affected setup is the Presenton desktop (Electron) build with the DISABLE_AUTH environment variable unset, which makes authentication disabled by default. To check a setup, look at whether DISABLE_AUTH is set in the environment the app runs in; if it is unset, the default applies.Source: github.com

What should I do about it?

The facts list no fixed version or upgrade target. Check the vendor's advisory or release notes for a patched Presenton release.Source: github.com

Is it being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data