LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validating it.
LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validating it. The optional allowedHosts allowlist that would constrain this is undefined in the default (and documented) configuration, so LSHttpRequest::checkIsAllowedHost() results in no operation. A remote, unauthenticated attacker who submits a forgotten-password request for a known account (requiring only the target's username and email) with a spoofed Host header causes LimeSurvey to email that account a reset link whose hostname is attacker-controlled while embedding the genuine validation_key. When the recipient or an automated inbound mail-security link scanner dereferences the link, the valid reset token is disclosed to the attacker, who replays it against the legitimate host's newPassword endpoint to set a new password and take over the account.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Paquete de Composer | limesurvey/limesurvey | <= 7.0.0-beta1 | sin corrección |
Referencias
- https://nvd.nist.gov/vuln/detail/CVE-2026-50635
- https://github.com/LimeSurvey/LimeSurvey/pull/5032
- https://github.com/LimeSurvey/LimeSurvey/commit/ac2a4f1673de7b56e7a342c338f36e8bb077d4b3
- https://github.com/LimeSurvey/LimeSurvey/commit/b394cb64328aa6db95e3304f82c8c9e603e9ceb0
- https://github.com/LimeSurvey/LimeSurvey
- https://www.limesurvey.org
- https://www.vulncheck.com/advisories/limesurvey-password-reset-host-header-injection-discloses-reset-token
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H- Debilidad (CWE)
CWE-640- Plataforma
- Composer
- Paquete
limesurvey/limesurvey- Publicada
- 09.06.2026
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-5c37-5j7w-8mh8 - CC BY 4.0
Historial de vulnerabilidades: limesurvey/limesurvey
Todas las vulnerabilidades publicadas de este paquete (Paquete de Composer), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 8
- Primera → última
- 10.2021 06.2026
- Sin corrección
- 2
- Explotada en ataques
- 0
Distribución por gravedad
- Alta 3
- Media 5
Divulgaciones por año
- 2021: 1
- 2022: 2
- 2023: 0
- 2024: 2
- 2025: 0
- 2026: 3
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LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validating it. esta entrada
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