CVE-2025-46813 Private data leak on login-required Discourse sites

Medium 5.8 Published 5 May 2025 Updated 6 May 2025

Unauthenticated users can view private homepage content on login-required Discourse sites deployed during a specific timeframe.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-46813?

CVE-2025-46813 is a medium-severity vulnerability in Discourse Discourse, published on 5 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Discourse is an open-source community platform. A data leak vulnerability affects sites deployed between commits 10df7fdee060d44accdee7679d66d778d1136510 and 82d84af6b0efbd9fa2aeec3e91ce7be1a768511b. On login-required sites, the leak meant that some content on the site's homepage could be visible to unauthenticated users. Only login-required sites that got deployed during this timeframe are affected, roughly between April 30 2025 noon EDT and May 2 2025, noon EDT. Sites on the stable branch are unaffected. Private content on an instance's homepage could be visible to unauthenticated users on login-required sites. Versions of 3.5.0.beta4 after commit 82d84af6b0efbd9fa2aeec3e91ce7be1a768511b are not vulnerable to the issue. No workarounds are available. Sites must upgrade to a non-vulnerable version of Discourse.

Weakness: CWE-200

Which versions are affected by CVE-2025-46813?

It affects 1 product.

Products include Discourse Discourse.

How do I fix CVE-2025-46813?

No fix has been published for CVE-2025-46813 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-46813 being exploited?

There is no known exploitation of CVE-2025-46813 in the wild and no public exploit code.

All Discourse Discourse vulnerabilities

Sources

Also known as GHSA-v3h7-c287-pfg9.