CVE-2019-17590

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The csrf_callback function in the CSRF Magic library through 2016-03-27 is vulnerable to CSRF protection bypass as it allows one to tamper with the csrf token values. A remote attacker can exploit this by crafting a malicious page and dispersing it to a victim via social engineering, enticing them to click the link. Once the user/victim clicks the "try again" button, the attacker can take over the account and perform unintended actions on the victim's behalf. NOTE: A third-party maintainer has stated that this CVE is a false report. They state that the csrf_callback function is actually a callback function to the callers own handler for output. The function called can be changed via configuration to a custom callback to handle failed validation differently. They also stated that there is no way for an attacker to change tokens to make them valid from the client side. The only thing an attack can do is to pull the token out of the javascript, but that will always be possible and has nothing to do with the callback

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CSRF Magic 跨站请求伪造漏洞

CSRF Magic是一款用于PHP应用程序的CSRF（跨站请求伪造）保护库。 CSRF Magic 2016-03-27及之前版本中的‘csrf_callback’函数存在安全漏洞，该漏洞源于程序允许攻击者篡改csrf令牌值。远程攻击者可借助恶意的页面利用该漏洞控制账户并以用户身份执行操作。

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