CSRF in Phpbb

CVE-2025-70810

Cross Site Request Forgery vulnerability in Phpbb phbb3 v.3.3.15 allows a local attacker to execute arbitrary code via the login function and the authentication mechanism

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.002 (15.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

  • Phpbb — versions 3.3.15
  • N/a — versions n/a

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-70810?
CVE-2025-70810 is a high-severity vulnerability in Phpbb, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2026-04-09.
How severe is CVE-2025-70810?
High severity. CVSS v3 base score is 8.8 out of 10.