An XSS attack leads to undesirable effects.

XSS攻击会导致不良后果。

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This can produce undesirable effects and must be avoided.

这会带来我们所不期望的影响，务必要避免。

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Most of the undesirable effects within a system are caused by a few core problems.

大多数系统内的不良效应都是由几个核心问题造成的。

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If they are right, it will not rid the world of chemical weapons and may, instead, have even more undesirable effects.

CENTERFORSECURITYPOLICY: Center For Security Policy

But now a lot of progress is being made in designing so-called nicotinic drugs that do the work of nicotine without the undesirable effects.

FORBES: Magazine Article

While these tests can detect cancer, they also can produce false positive results that lead to unnecessary and uncomfortable biopsies and treatments that carry undesirable side effects such as impotence and urinary incontinence.

CNN: Let men decide on prostate screening, cancer society says