CVE-2025-53532

5.3 mediumEPSS 0.3%

Medium (5.3). EPSS 0.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.3 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 24% of CVEs (scores of 2026-10-31)
CWE: CWE-285
Published: 2025-07-07
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://github.com/giscus/giscus/commit/4b9745fe1a326ce08d69f8a388331bc993d19389
https://github.com/giscus/giscus/commit/c43af7806e65adfcf4d0feeebef76dc36c95cb9a
https://github.com/giscus/giscus/security/advisories/GHSA-w6vg-v24f-4vm3

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