CVE-2026-121553: fallo de gravedad media en cotonti
Cotonti through 1.0.0 Predictable Validation Tokens via md5(microtime())
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 6.3epss 0.4%
Cotonti through 1.0.0 generates registration and email-change validation tokens with md5(microtime()), allowing attackers to bypass email-ownership verification by predicting tokens. Attackers can derive the generation time from the HTTP Date header and compute candidate tokens offline. They then submit these tokens to the users.register.php validate handler to activate accounts or confirm email addresses they do not control.
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
Productos afectados
cotonti · cotontiReferencias
https://github.com/Cotonti/Cotontihttps://github.com/Cotonti/Cotonti/blob/1.0.0/modules/users/inc/users.functions.php#L97https://github.com/Cotonti/Cotonti/blob/1.0.0/modules/users/inc/users.profile.php#L116https://github.com/Cotonti/Cotonti/blob/1.0.0/modules/users/inc/users.register.php#L148https://github.com/Cotonti/Cotonti/issues/1904https://github.com/Cotonti/Cotonti/pull/1905https://www.vulncheck.com/advisories/cotonti-through-1.0.0-predictable-validation-tokens-via-md5-microtime