CVE-2025-52186

6.5 mediumEPSS 0.3%

Medium (6.5) in lichess lila. EPSS 0.3% chance of exploitation in the next 30 days.

Lichess lila before commit 11b4c0fb00f0ffd823246f839627005459c8f05c (2025-06-02) contains a Server-Side Request Forgery (SSRF) vulnerability in the game export API. The players parameter is passed directly to an internal HTTP client without validation, allowing remote attackers to force the server to send HTTP requests to arbitrary URLs

Severity

CVSS 3.1

6.5 medium

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

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 27% of CVEs (scores of 2026-10-31)
CWE: CWE-918
Published: 2025-11-13
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

lichess:lila

References

https://github.com/lichess-org/lila/commit/11b4c0fb00f0ffd8232346f839627005459c8f05c
https://hackerone.com/reports/3165242

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