CVE-2026-29199: phpBB has Password Reset Link Poisoning via Host Header injection

high Affects phpbb/phpbb. Feed 2026.10.29.1, updated 2026-10-28; published 2026-05-04; advisory modified 2026-09-10.

phpBB has Password Reset Link Poisoning via Host Header injection

Package: phpbb/phpbb Composer
Affected versions: >=3.0.0 and <3.3.16 or >=4.0.0-a1 and <4.0.0-a2
Fixed in: 3.3.16, 4.0.0-a2
Severity: high CVSS 8.1
Exploitation: not on CISA KEV · EPSS 0% (16.3th percentile)
Published: 2026-05-04
Source: osv.dev

References

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