CVE-2025-53532 giscus allows unauthorized discussion creation
An attacker can create unauthorized discussions on any repository using giscus, potentially spamming or disrupting community interactions.
- 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-2025-53532?
CVE-2025-53532 is a medium-severity missing authorization vulnerability in giscus, published on 7 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
giscus is a commenting system powered by GitHub Discussions. A bug in giscus' discussions creation API allowed an unauthorized user to create discussions on any repository where giscus is installed. This affects the server-side part of giscus, which is provided via http://giscus.app or your own self-hosted service. This vulnerability is fixed by the c43af7806e65adfcf4d0feeebef76dc36c95cb9a and 4b9745fe1a326ce08d69f8a388331bc993d19389 commits.
Weakness: CWE-285
Which versions are affected by CVE-2025-53532?
How do I fix CVE-2025-53532?
No fix has been published for CVE-2025-53532 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-53532 being exploited?
There is no known exploitation of CVE-2025-53532 in the wild and no public exploit code.
Sources
Also known as GHSA-w6vg-v24f-4vm3.