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Vulnerabilities

Security fix · CVE-2025-49845

Discourse is an open-source discussion platform.

Published Jun 25, 2025 · catalog updated Jun 26, 2025 · Discourse is an open-source

Last checked Oct 26, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-49845. EPSS is 0.40%. Act only if a listed version of Discourse is an open-source is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Discourse is an open-source).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium6.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.40%
Remediation
Version ranges on file
Affected products
vendor discourse discourse 3.5.0.beta0-dev, < 3.5.0.beta8-dev

Discourse is an open-source discussion platform. The visibility of posts typed is controlled via the site setting. Only users that belong to groups specified in the site setting are allowed to view posts typed . However, it has been discovered that users of versions prior to 3.4.6 on the branch and prior to 3.5.0.beta8-dev on the branch can continue to see their own whispers even after losing visibility of posts typed . This issue is patched in versions 3.4.6 and 3.5.0.beta8-dev. No known workarounds are available.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor discourse discourse 3.5.0.beta0-dev, < 3.5.0.beta8-dev3.5.0.beta0-dev, < 3.5.0.beta8-dev

How to fix CVE-2025-49845

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-49845. EPSS is 0.40%. Act only if a listed version of Discourse is an open-source is installed.

Which versions are affected?

Compare what you have installed with discourse discourse 3.5.0.beta0-dev, < 3.5.0.beta8-dev 3.5.0.beta0-dev, < 3.5.0.beta8-dev. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.40%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 25, 2025 · EUVD

    Detected

    Discourse is an open-source discussion platform. The visibility of posts typed is controlled via the site setting. Only users that belong to groups specified in the site setting are allowed to view posts typed . However, it has been discovered that users of versions prior to 3.4.6 on the branch and prior to 3.5.0.beta8-dev on the branch can continue to see their own whispers even after losing visi

  2. Jun 26, 2025 · EUVD

    Updated

    Discourse is an open-source discussion platform. The visibility of posts typed is controlled via the site setting. Only users that belong to groups specified in the site setting are allowed to view posts typed . However, it has been discovered that users of versions prior to 3.4.6 on the branch and prior to 3.5.0.beta8-dev on the branch can continue to see their own whispers even after losing visi

Sources

  • CVE.orgVulnerability recordCVE-2025-49845

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-49845

    30-day exploitation probability 0.40%

    first.org
  • EUVDVulnerability recordEUVD-2025-19108

    Discourse is an open-source discussion platform. The visibility of posts typed is controlled via the site setting. Only users that belong to groups specified in the site setting are allowed to view posts typed . However, it has been discovered that users of versions prior to 3.4.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 26, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 21, 2026
  • EUVDOct 20, 2026